Four petitions seeking injunctive relief and review of a June 28, 1977 Order of the Interstate Commerce Commission are before us, together with the United States’ motion to dismiss.1 For reasons discussed below, we grant the government’s motion.
Background Of The Case
This controversy arose on the eve of the flow of crude oil through the Trans Alaska Pipeline System (TAPS)2 which stretches *778from oil fields in Alaska’s North Slope at Prudhoe Bay to Valdez, Alaska, some 800 miles distant. The pipeline was constructed by the Alyeska Pipeline Service Corporation, an agent for its eight owners.3
Between May 27,1977 and June 15, 1977, seven TAPS owners filed the tariffs4 which are at issue here,5 having effective dates ranging from June 20 to July 1, 1977. Protests were filed by the Department of Justice, the State of Alaska,6 the Arctic Slope Regional Corporation,7 and the ICC’s Bureau of Investigations and Enforcement. The Commission heard oral argument on June 27, 19778 without making any formal evidentiary record.8a
*779The ICC’s June 28 Order9 instituted an investigation into the lawfulness of the tariffs pursuant to 49 U.S.C.A. §§ 15(1)10 and 15(7).11 The rates filed were suspended for seven months without prejudice to the filing of interim rates during the suspension *780period. The Commission additionally authorized the filing, upon not less than one day’s notice, of interim rates which were not to exceed certain levels, subject, however, to the condition that the carriers keep account and that (i) the interim tariffs contain a refund provision to the effect that if the new rates exceed those subsequently authorized or prescribed by the ICC, the carriers will refund the excess with interest; and (ii) the carriers file a similar refund provision applicable to the original proposed rates. The Order thus had the following effect on the carriers’ proposed rates per barrel:
As Filed by Authorized TAPS Owners Bv Order12 Reduction
Amerada Hess Pipeline Corp. $6.44 $4.85 $1.59
Arco Pipe line Company 6.04 4.91 1.13
BP Pipelines Inc. 6.35 4.68 1.67
Exxon Pipeline Company 6.27 5.10 1.17
Mobil Alaska Pipeline Company 6.31 4.84 1.47
Phillips Alaska Pipeline Corp. 6.22 Not Yet Acted Upon
Sohio Pipe Line Company 6.16 4.70 1.46
Union Alaska Pipeline Company 6.09 4.89 1.20
The carriers estimate that the Order will result in an irretrievable $340 million loss over the seven-month suspension period.
The suspension left the pipeline companies without tariffs on file, and they are forbidden by § 6(7) of the Act to engage or participate in the transportation of oil unless they file new tariffs. The carriers thus had two alternatives open to them. They could file new tariffs within the ICC guidelines or they could shut down the TAPS system for the seven-month suspension period. Unhappy with either choice, the pipeline companies filed their petitions and motions and the United States moved to dismiss.13 This Court heard oral argument on July 19, 1977.
The major issues raised by the parties are (i) whether we have jurisdiction to review the ICC order; (ii) whether the Commission has the authority under 49 U.S.C.A. § 15(7) to suspend the first and only (“initial”) rate of a carrier; (iii) whether as part of a purported suspension order the ICC may prescribe or suggest optional maximum interim rates; (iv) whether the ICC’s order authorizing the filing of maximum interim rates without a full hearing amounted to a prescription of rates within the meaning of 49 U.S.C.A. § 15(1); (v) whether the Commission acted outside its statutory authority in ordering the refund provisions in the tariffs; (vi) whether the Commission’s action was arbitrary, capricious or constituted *781an abuse of discretion; (vii) whether the maximum interim rates authorized were confiscatory in violation of the Fifth Amendment.
1. Reviewability and the authority of the Commission
The government has moved to dismiss the petitions for review on the ground that this court has no jurisdiction to review suspension orders of the ICC issued pursuant to 49 U.S.C.A. § 15(7). True, courts do not have jurisdiction to review ICC suspension orders. Congress has committed the decision to suspend or not to suspend proposed rates exclusively to the discretion of the Commission. U. S. v. Students Challenging Regulatory Agency Procedures (SCRAP), 412 U.S. 669, 93 S.Ct. 2405, 37 L.Ed.2d 254 (1973); Arrow Transportation Co. v. Southern Railway Co., 372 U.S. 658, 83 S.Ct. 984, 10 L.Ed.2d 52 (1963); K. Davis, ADMINISTRATIVE LAW TREATISE 966 (1970 Supp.). As a panel of this circuit noted:
The Interstate Commerce Commission . is vested with power to suspend, at its discretion, for a period of seven months, rates filed with it pending hearing and decision on their lawfulness. 49 U.S.C. § 15(7). The existence of this power in the ICC, it has been held, evinces the deliberate decision of Congress to extinguish judicial power to grant any injunction which interferes with the Commission’s discretionary decision to suspend rates filed with it at anytime before the Commission finally determines the lawfulness of the rates.
Texas v. Seatrain International, 518 F.2d 175 at 178 (CA5, 1975). But the rule of unreviewability presupposes an affirmative answer to a preliminary inquiry into whether the Commission has acted within the authority granted to it by § 15(7). A suit to enjoin a suspension order may be entertained if the complaint shows that the agency lacked the basic statutory authority to issue such an order. Great Western Packers Express, Inc. v. U. S., 246 F.Supp. 151, 154 (D.Colo., 1965) (three-judge court); Long Island Railroad Co. v. U. S., 193 F.Supp. 795, 800 (E.D.N.Y., 1961) (three-judge court).
Section 15(7) gives the ICC the power to suspend “any schedule stating a new individual or joint rate, fare, or charge, or any new individual or joint classification, or any new individual or joint regulation or practice affecting any rate, fare, or charge” for a period not to exceed seven months, and to order an investigation and full hearings on those new charges. The above language has no plain meaning. The term “new” can refer to both changed and initial rates or only to changed rates. The statutory history of the Mann-Elkins Act (1910), which added § 15(7) to the Interstate Commerce Act, yields little insight on whether the ICC is empowered to suspend initial rates since no one seems to have debated or even discussed this specific question. However, our examination of statutes modeled on § 15(7) and of the legislative policy underlying that section convinces us that it was Congress’ intention that the Commission have the power to suspend initial as well as changed rates.
Section 15(7) has served as the prototype of other agency rate suspension provisions in the Interstate Commerce Act and in other regulatory acts as well. In many of these acts, when Congress has wished to exclude initial rates, either in part or across the board, it has done so in specific language. In the Interstate Commerce Act itself, there are provisions modeled on 49 U.S.C.A. § 15(7) giving the ICC authority to suspend new rates, proposed by motor carriers, 49 U.S.C.A. § 316(g), by water carriers, 49 U.S.C.A. § 907(g)(i), and by freight forwarders, 49 U.S.C.A. § 1006(e). Each of these provisions contains a grandfather clause exempting certain initial rates from suspension. If initial rates were not covered there would have been no need for the grandfather clauses. Another example is 49 U.S.C.A. § 1482(g), which gives the Civil Aeronautics Board suspension powers similar to those granted to the ICC with one *782significant difference: it specifically provides that “[t]his subsection shall not apply to any initial tariff filed by any air carrier.” Thus, we conclude that if Congress had wished to exempt initial tariffs from the purview of § 15(7) it would have done so specifically, and that Congress’ omission to specially exempt initial rates in this section indicates its intent that initial rates be subject to the ICC’s § 15(7) suspension powers.
The conclusion that initial rates are covered by § 15(7) is consistent with the legislative policy underlying that section. Section 15(7) evidences a belief on the part of Congress that the normal hearing and reparation processes of the ICC are not sufficient to protect the public against potentially excessive charges. The need for this protection is no less in the case of initial rates than in the case of changed rates. Absent a specific legislative decision that initial rates are not covered, it would be illogical to assume that Congress intended to leave such a gap in the legislative scheme.
2. The suggested interim rates
The petitioners challenge the action of the Commission with respect to suggested interim rates. They point out that § 15(7) contains no provisions for establishing interim rates and that, in any event, rates can only be prescribed after full hearings. See 49 U.S.C.A. § 15(1). The Commission’s position is that it has not actually fixed a rate but, in a situation of urgent national interest and as an incident of its power to suspend, it has given advance indication of the maximum rates with respect to which—-if the carriers elect to file them—the Commission will not exercise its power to suspend.
The Commission Order refers to “interim rates,” but baldly describing the issue as the power of the Commission to set interim rates is misleading. As we have held, the Commission had the power to unconditionally suspend the proposed tariffs, leaving the carriers without any tariffs but free to file new tariffs if they wished, which would be subject to new exercise of the Commission’s power to suspend. The ICC chose not to exercise to its full limits the drastic but available power of unconditional suspension and instead announced that if petitioners would file interim tariffs at or below Commission-announced ceilings the Commission would not unconditionally suspend the tariffs originally filed.
The petitioners maintain that the § 15(7) power to suspend is an all or nothing instrument. We think not. The Commission may elect to exercise its power less than fully, or putting it another way, may partially waive the suspension power. We are guided by the Supreme Court’s decision in U. S. v. Chesapeake & Ohio Railroad Co., 426 U.S. 500, 96 S.Ct. 2318, 49 L.Ed.2d 14 (1976) (“Chessie"). In Chessie the ICC suspended a carrier-proposed tariff increase but at the same time authorized the railroads to refile, incorporating conditions which would assure that the additional revenue would be expended on capital improvements and deferred maintenance. The Supreme Court upheld the refiling provision as directly related to the ICC’s suspension power. The Court noted that the ICC could simply suspend the originally proposed rates for the full statutory seven-month period but that instead “it pursued a more measured course and offered an alternative tailored far more precisely to the particular circumstances presented.” 426 U.S. at 514, 96 S.Ct. at 2325, 49 L.Ed.2d at 23. Chessie establishes the right of the ICC to choose to exercise its suspension power to less than its outer limits in order to meet the needs of a particular situation. The ICC’s authorization to file interim rates was the type of “more measured course” or partial waiver which the Supreme Court approved in Chessie.
Moss v. CAB, 430 F.2d 891 (C.A.D.C., 1970), relied on by the petitioners, is not to the contrary. In Moss the Court of Appeals for the District of Columbia held that the Civil Aeronautics Board (CAB) could not, after ex parte meetings with the air carriers, “suggest” a comprehensive rate formula that it would not suspend or investigate. *783Moss involved what for all intents and purposes was the establishment of permanent rates. By attempting to establish a permanent rate' structure through its suspension power the CAB took actions which went beyond the strongest action it could have taken under its suspension power, i. e., suspending the proposed increases for 180 days. 49 U.S.C.A. § 1482(g). In essence what the CAB attempted to do in Moss was to waive a right it did not have. In contrast, the ICC’s suggestion of interim rate ceilings in the present case is an action which is more restrained, or measured, than its right to unconditionally suspend the original tariff for a period of seven months. If in seven months the ICC has not completed its investigation, the carriers will be free to levy their originally filed charges subject to a refund order.
Also, in Moss the practical effect of the CAB’s actions would have been to immunize the suggested permanent rate structure from judicial review.14 In the present case the ICC has not sought to shield its final decision from judicial review. Instead the Commission has commenced hearings on the original rates proposed by the petitioners, and any eventual final order stemming from those hearings is subject to judicial scrutiny.
In a case involving initial rates, if the ICC could not couple its suspension order with a statement of maximum allowable interim ceilings, the Commission would be forced to allow initial rates to go into effect, even if facially outrageous, subject only to lengthy investigation and hearing procedures, or to watch a possibly vital public service close down for want of a rate schedule. We doubt the Congress would have intended that the Commission face that Hobson’s choice.
The use of interim rates as a condition to a suspension order is not unprecedented. In I & S Docket No. 8645, Orders (May 27, 1971, and June 29, 1971) the Commission ordered that increased lighterage charges proposed by the Penn Central Railroad be suspended but allowed the company to file interim rates containing additional charges not to exceed 50% of those initially proposed. The ICC’s orders also required that Penn Central maintain an account from which refunds could be made to the extent that the proposed tariffs could not be justified to the Commission. In Port of New York Authority v. U. S., 451 F.2d 783, 785-88 (CA2,1971), the Second Circuit held that the Order was unreviewable and that federal courts lacked subject matter, jurisdiction over an action challenging the Order.
We conclude that the ICC as corollary to its suspension power had the power to set out allowable rate ceilings for the seven-month period which, if filed, it would not suspend. Therefore, this aspect of its Order is not reviewable by this court.
3. The refund provisions
As a condition precedent to the interim rates which the Commission stated it would accept, the Commission required the carriers to establish refund provisions for use in the event that either the interim rates or the originally filed tariffs15 or both should be found to be excessive.
With respect to this exercise of power for the seven-month period, like the power to suggest the interim rates themselves, we find this is a valid corollary to the suspension power, which we lack jurisdiction to review. See Port of New York Authority v. U. S., supra. We are less certain of the Commission’s power to require the carriers to establish refund provisions with respect to the originally filed rates. However, we view this exercise of power as corollary to the power to suspend. Thus, insofar as the Commission’s order reaches beyond the seven-month period, we are guided by Chassie, *784where the condition upheld by the Supreme Court was permanent.16
4. Arbitrariness and confiscation
The petitioners assert that the Commission action was an abuse of discretion and that the interim rate ceilings are so grossly insufficient that they are confiscatory in violation of the Fifth Amendment. Restating, we understand these contentions to be that even if the Commission is authorized by § 15(7) to act with respect to the subject matter, its exercise of power departed from constitutional standards. Assuming that we can review the Commission Order through these constitutional entry points the record before us gives no basis upon which we can act.
All motions to intervene are GRANTED. All motions for stay, suspension, injunction and other forms of interlocutory relief are DENIED. The motion of the United States to dismiss the petitions for review is GRANTED.
APPENDIX
ORDER *
At a General Session of the INTERSTATE COMMERCE COMMISSION, held at its office in Washington, D. C., on the 28th day of June, 1977.
INVESTIGATION AND SUSPENSION DOCKET NO. 9164
TRANS ALASKA PIPELINE SYSTEM (Rate Filings)
No. 36611
TRANS ALASKA PIPELINE SYSTEM (Rules and Regulations)
Initial rate tariffs have been filed by eight pipeline companies, proposing to operate as common carriers of crude petroleum over the Trans Alaska Pipeline System.
Protests and petitions for suspension of the tariffs have been filed by the United States Department of Justice, the State of Alaska, the Arctic Slope Regional Corporation and our Bureau of Investigations and Enforcement. These pleadings seek to invoke our power under section. 15(7) of the Interstate Commerce Act (1) to enter upon a hearing concerning the lawfulness of the tariffs and (2) pending the hearing and decision, to suspend the operation of the tariffs for a *785period no longer than seven months. Replies to the protests have been filed by each of the eight carriers.
The tariffs are identified in Appendix 1 to this order. As noted therein, the various rules contained in the tariffs have already been placed under investigation by Commission order dated June 17, 1977, No. 36611. Consideration of the tariff rates, however, was deferred to the present order. The rates per barrel proposed by the respective companies are as follows:
. Amerada Hess Pipeline Corporation $6.44
Arco Pipe Line Company 6.04
BP Pipelines Inc. 6.35
Exxon Pipeline Company 6.27
Mobil Alaska Pipeline Company 6.31
Phillips Alaska Pipeline Corporation 6.22
Sohio Pipe Line Company 6.16
Union Alaska Pipeline Company 6.09
With respect to these rates, we have given careful consideration to the protests, and to the carriers’ replies. In addition, we have heard oral argument by the parties. It is our conclusion that a formal investigation concerning the lawfulness of the proposed rates should be instituted pursuant to sections 15(1) and 15(7) and that because of the close interrelationship of the rate filings and the applicable rules and regulations, they should be considered in the same proceeding. We further conclude that such rates should be suspended, without prejudice to the filing of interim rates, during the suspension period.
In reaching these conclusions, we have considered the following issues: (1) whether an investigation should be instituted; (2) whether the proposed rates can and should be suspended; (3) whether interim rates can and should be authorized; (4) what level of interim rates should be authorized; and (5) what conditions should be attached to the acceptance of interim rate filings.
The institution of an investigation.
Section 15(7) of the act empowers the Commission to enter upon a hearing concerning the lawfulness of a filed tariff stating a new rate or charge. In order for a rate to be lawful, a primary requirement is that it be just and reasonable (section 1(5)). The act sets forth other requirements as well, and if an investigation is instituted, any and all aspects of the lawfulness of the rate may be considered. However, the question raised by the protests is whether there is reason to believe the proposed rates are not just and reasonable.
Protestants contend that the filed rates would provide excessive profits, whether compared with a traditional rate of return on valuation or with the carriers’ capital costs. They also contend that the cost data provided by the carriers is overstated.
*786The carriers reply that their rates were computed to allow a 7 percent return on valuation, as contemplated in a 1941 consent agreement between the Justice Department and a number of shipper-owned pipelines (United States v. Atlantic Refining Co., C.A. No. 14060, D.D.C. decided December 23, 1941). They also assert that the standards used by protestants are unrealistic in that they do not recognize that the carriers are able to maintain high levels of debt financing only because such debt is guaranteed by the parent oil companies. The carriers argue that, without such guarantees, they would have to resort to a larger amount of equity financing, and their overall capital costs would be higher than the amounts recognized by protestants. The carriers also deny that their cost data is overstated. However, they do not object to a formal investigation of the filed rates.
For reasons set forth below, we do not accept the 1941 consent decree as a standard of reasonableness under the Interstate Commerce Act. Moreover, while there may be merit to the carriers’ contentions that the standards used by protestants do not cover their true costs of capital, this is a matter that cannot be resolved until a more complete record is developed. Finally, evidentiary hearings will be necessary to develop acceptable cost data for use in applying whatever measures of reasonableness are found to be appropriate. Therefore, we conclude that there has been a sufficient showing of probable unlawfulness to warrant the institution of a formal investigation concerning the proposed rates.
The suspension of the proposed rates. Some of the carriers argue that the Commission is without power to suspend initial rates. They rely on numerous references in legislative history and past cases to exercise of the suspension power in instances of “increased” rates. They rely on such references to conclude that the power of suspension does not apply to initial rates. However, the reason that the suspension powers are usually discussed in the context of increased rates is clear: the vast majority of rate proceedings involve situations where increases in existing rates are at issue.
We see no basis in the sources cited for concluding that we may not suspend initial rates. If this were the Congressional intention, we believe that it would have been explicitly stated. It was not so stated, and the carriers have been unable to cite any direct authority for their position.
It is stated in section 15(7) that the Commission is authorized to enter upon a hearing concerning “any schedule stating a new individual or joint rate, fare, or charge.” Pending this hearing and decision, the Commission may suspend, for up to seven months, the schedule being investigated. In Rail-Water, Grain in Bulk, Mo., Ill., and Ind., to Buffalo, 321 I.C.C. 564, 566 (1963), it was said that the term “new rate” in section 15(7) encompasses “both changed and initial” rates.
*787Similar suspension powers pertaining to other modes of carriage are contained in sections 216(g), 218(c), 807(g), and 406(e) of the act. In each of these sections, there is “grandfather” language making the provisions inapplicable to “initial” rates filed on or before a certain date. By implication, then, the investigation and suspension provisions are applicable to initial rates filed after such date.
As noted, if it were intended to exclude initial rates from the suspension power of section 15(7), one would expect specific language to this effect. No such language appears. Accordingly, we have no doubt that the suspension power is applicable to initial rates.
The carriers also question whether, even if the suspension power is applicable, we should exercise it here. They argue that protestants would not be harmed by allowing the proposed rates to go into effect, inasmuch as refunds or reparations would be available if the investigation should show that the filed rates are too high.
Protestants, however, do not consider the possibility of refunds to be adequate protection. The Arctic Slope Regional Corporation, which represents Alaskan Natives, notes that the longer it must wait for its share of royalty revenues (which are adversely affected by high transportation rates), the less value such revenues will have. Protestants also argue that the maintenance of pipeline rates at too high a level would act as a deterrent to the use of the pipeline by independent oil producers.
Although we recognize that the refund remedy is available, we do not believe that the rates can be allowed to go into effect without suspension, when, as here, the protestants have made a showing of probable unlawfulness. Moreover, as noted by protestants, the maintenance of excessively high rates could act as a deterrent or an obstacle to the use of the pipeline by non-affiliated oil producers, and would also delay the Alaskan interests in obtaining revenues that depend upon the wellhead price of the oil. Under the circumstances, we have concluded that the proposed rates, as filed, should be suspended, pending our investigation, for the statutory period of 7 months.
The specification of interim, rates. Protestants seek to have the Commission name specific rates that may be charged by each carrier while the investigation is being conducted. The carriers, however, contend that the Commission has no power to do so. They argue that the specification of interim rates would be a rate prescription within the meaning of section 15(1) of the act, and that we are empowered to take such action only after a full hearing.
We see no basis for considering such action to be a prescription of rates.1 We may authorize interim rates without requiring that the *788rates proposed in the tariffs be cancelled, and without precluding the proposed rates from taking effect at the end of the 7-month suspension period if our investigation is not then completed (subject, however to a refund provision as hereafter described). These interim rates would not be intended to have permanent effect, but would merely be interim rates that we would allow to be collected during the suspension period. Such rates, if filed, remain subject to Commission scrutiny and are not to be considered as prescribed within the meaning of the decision in Arizona Grocery v. Atchison, T. & S. F. Ry., Co., 284 U.S. 370, 52 S.Ct. 183, 76 L.Ed. 348.
We believe that the power to allow interim rates is inherent in the suspension power. Without it, the Commission could be faced with the choice of allowing the carriers to operate at any rate they choose, whether or not lawful, or precluding carrier operations altogether. We do not believe that Congress could have intended our powers to be so inflexible. If the suspension power did not include the discretion to permit interim rates, it would be a substantially less satisfactory tool for serving the public interest.
Having concluded that we possess the power to authorize interim rates, we have no hesitation about taking such action in the present circumstances. If we were to suspend the proposed rates without allowing interim rates, the result would be to preclude the carriers from commencing their operations during the suspension period. Such a result would be contrary to the interests of all concerned.
The level of interim rates. We believe that the proper question to be asked concerning our action in these proceedings is not whether we have the discretion to authorize an interim rate. Rather, the question should be whether we have exercised such discretion in a reasonable manner.
The key to a proper exercise of our discretion in this situation lies in recognizing the possible consequences of our action. We must bear in mind that the carriers may have no means of obtaining restitution if initially required to maintain too low a rate. On the other hand, a remedy by way of refunds or reparations is available to persons injured by the charging of a rate that is ultimately found to be too high. In these circumstances, the reasonable approach to determining an interim rate is (1) to accept the basic data supplied by the carriers and (2) at the same time to require a refund provision in the event *789that such amounts are ultimately determined to exceed a reasonable level. This, then, is the course that we shall follow.
The process of arriving at an acceptable interim rate requires two steps. The first is to define the basic carrier data that will be employed, and the second is to perform computations using such data.
The data that we will employ is set forth in Appendix 2. For the purposes of the present decision, we have, for the most part, employed the figures supplied by the carriers. Appendix 2 displays this data both in total dollars and in dollars per barrel. The conversion to per-barrel figures is based on the assumption that the normal traffic volume for the beginning years will be 438 million barrels a year (1.2 million barrels a day), and that this number of barrels will be apportioned among the carriers according to their respective ownership shares in the pipeline.
Of the items set forth in Appendix 2, substantial questions have been raised at this stage of the proceeding particularly with regard to removal and restoration costs and depreciation. Removal costs are the costs expected to be incurred at the end of the useful life of the pipeline in order to meet environmental requirements. According to the Alyeska Pipeline Service Company, these costs will amount to about $1,049 billion in 1977 dollars. Some of the carriers propose to simply set aside one twenty-fifth of their total share of this amount each year for 25 years. Others propose more detailed computations to inflate the removal costs to dollar costs for the year 2002, and to allow for compounded interest on the yearly accruals. The protestants, on the other hand, seek to reduce the yearly removal charges by requiring that they be amortized over a period longer than 25 years.
With respect to depreciation charges, the carriers uniformly propose a 25-year service life, on the basis that known recoverable reserves on the North Slope are expected to be depleted in terms of economic recovery in 25 years. Protestants propose that service lives as long as 35 years be required, on the basis that additional oil fields exist on the North Slope that are likely to extend the pipeline’s useful life and that even the present reserve may have a longer life than 25 years.2
Both of these issues will receive substantial attention during our formal investigation. However, at this stage of the proceedings, the data presented concerning additional reserves is of a somewhat uncertain nature. We do not deem this data sufficient to warrant a reduction in the amount allowed for depreciation for the purposes of determining the lawfulness of the proposed rates at the suspension level. By the same token, we will not, at this time, compute removal charges over an amortization period of more than 25 years.
*790For removal costs, we have used the same per-barrel allowance for each carrier, because we see no basis for cost differences among the carriers on this item. Our allowance is based on a simple amortization without inflation or discounting. While this approach may somewhat understate the amounts that need to be accrued, the magnitude of the discrepancy would not be great in terms of the overall tariff computation. It may well be outweighed by overstatement in the depreciation charges.
An additional issue is raised by protestants concerning the investment and valuation figures. It is their contention that these figures are affected by excessive construction costs. Needless to say, this issue will be a major focus of our formal investigation. However, as the protestants themselves concede, this is not a matter that can be properly dealt with at the present stage of the proceeding. Accordingly, the investment figures provided by the carriage will be used at this time. Our valuation staff has used the same data in providing valuation figures for present purposes.
In one aspect, the investment data shown on Appendix 2 differs from figures supplied by certain carriers in that it does not include an amount for working capital. Not all of the carriers reported working capital as part of their investment. Those that did appear to have used no consistent standard. For this reason, and because a satisfactory basis for judging the carriers’ working capital needs has not been shown, we have omitted it from the investment figures.3 We believe that our action in this respect is more than compensated by our liberality in not averaging down the investment figures for depreciation over the first few years.
Having the basic data at hand, we turn now to the question of rate computation.
In justifying the filed tariff rates, the carriers contend that the proposed rates are merely sufficient to cover expenses and interest and to allow an after-tax return on equity equal to 7 percent of their valuation. They consider this method of gauging a return on equity to be permissible since it is used in the 1941 consent agreement between the Justice Department and a large number of shipper-owned pipelines.
However, the consent decree standard has never been employed in a Commission proceeding as the test of reasonableness of rates. Its sole legal status is as a limit on the amount of dividends that pipelines may pay to shipper owners without risking prosecution under the Elkins Act for illegal rebates. Moreover, as a standard of reasonableness, it has nothing to recommend it from a conceptual standpoint. Although valuation is a measure of the entire investment, the consent *791decree standard allows a return on valuation to be used entirely to compensate one segment of the capital invested. Such a standard can have no relationship, except by coincidence, to the carriers’ true capital costs. As shown in Appendix 3, the filed rates would produce returns on equity ranging from 31 percent to 96 percent. Accordingly, it can be seen that the tariff rates would produce returns exceeding capital costs, even where the carriers’ own expense and investment data are accepted.
Inasmuch as the carriers’ justification does not appear satisfactory, we must next consider what standards would be appropriate based on our own precedents. As we noted in No. 35533, Petroleum Products, Williams Brothers Pipe Line Company, - I.C.C. - (1976), the standards we have applied in the past have been an 8 percent return on valuation for crude oil pipelines and 10 percent on valuation for petroleum products pipelines.
At the outset, we have questions about the appropriateness of an 8 percent return in this instance, where annual interest rates generally exceed 8 percent. The small margin of earnings in excess of interest that would result is demonstrated in Appendix 4. As may be seen, rates computed on this basis would range from $3.74 for BP to $4.16 for Exxon. Further study of this table shows that five of the eight carriers would have returns on equity of 10 percent or less under this standard, and returns for some would be lower than 3 percent. Such a return would be unreasonably low.
It should be noted that the 8 percent on valuation standard arose in the early 1940’s, when capital costs were substantially lower than they are today. It could continue to provide a substantial return on original investment to established carriers, whose valuations have risen well above their actual investment because of inflation. In the case of the TAPS carriers, however, their property was constructed so recently that valuation is little higher than actual cost, and an 8 percent return on valuation becomes quite deficient.
The question arises, then, as to whether the Commission can permissibly depart from its previous standards in these proceedings. The answer lies in the fact that, whatever standards we use, the earnings allowed to the carriers must comply with governing judicial requirements. The controlling standard, set forth in Federal Power Commission v. Hope Natural Gas Co., 320 U.S. 591, 603, 64 S.Ct. 281, 88 L.Ed. 333 (1944), is that a regulated firm must be allowed enough revenue not only for operating expenses, but also for the capital costs of the business. Such revenue must cover service on the debt and a return on equity sufficient to attract capital. [See also section 15a(2).]
For the purposes of the present decision, we have determined that the standard of a 10 percent return on valuation for petroleum products pipelines is appropriate for the TAPS carriers. Our selection of the 10 percent return on valuation standard is based primarily on two *792factors. One is that the magnitude and inherent attributes of the TAPS project produce a higher risk factor than is normal in crude oil pipeline operations. Many of the construction features are being tested for the first time. Geographic terrain, environmental and temperature problems, possible earthquakes, vulnerability to sabotage, future oil pricing policies, and regulatory uncertainty are among the factors to be considered. Moreover, a 10 percent return on valuation appears generally sufficient to cover estimated capital costs. As previously noted, an 8 percent return on valuation produces generally insufficient returns on equity.
As shown in Appendix 5, a 10 percent return on valuation produces for the individual carriers on their actual capital structure returns on equity ranging from 13.3 percent to 54.3 percent, with no figure for Mobil which claims to be totally debt financed. The composite return on equity is 23 percent.
While these returns on equity have been challenged by protestants, the carriers note that they have an abnormally high proportion of debt in their capital structures, which is made possible by the fact that their debt obligations are unconditionally guaranteed by their parent oil companies. The carriers would argue that tariff rates based on 10 percent return on valuation provide a much lower return on equity with a more normal capital structure.
Although the 10 percent return on valuation appears suitable for present purposes, we stress that it is not intended to be a general standard nor to be a prejudgement of criteria to be used upon the conclusion of the investigation in these proceedings, nor is it in any way to be considered a prejudgement of the issues in Ex Parte No. 308.
Conditions for the acceptance of interim rate filings. ■ The Bureau of Investigations and Enforcement asks that the carriers be required to produce a number of types of documents as a condition to our acceptance of interim rates. The carriers, however, contend that BIE’s proposed condition is an attempt to circumvent the Commission’s established discovery rules, and should not be adopted.
We have concluded not to impose the requested condition in the present order. We do not believe that such orders are a necessary subject for inclusion in an order disposing of petitions for suspension of a tariff. Any future request for orders can be handled as separate matters later, when all factors concerning the production of the requested data can be properly considered. In addition, we note that at oral argument, the carriers indicated their willingness to cooperate in the production of documents. We shall expect them to abide by this agreement.
The other condition requested by protestants pertains to possible refunds of excess charges collected. We recognize that even the lower interim rate levels may prove upon investigation to exceed reasonable levels. Therefore, as a condition to filing such interim rates, we will *793require that the carriers keep account of the amounts collected under the interim rates or the proposed rates should they become effective and that they agree to refund any portion of such amounts that may ultimately be established as excessive.
Immediately prior to the oral argument on June 27, 1977, the Department of Justice filed a'memorandum in reply to the responses of the carriers together with a motion for leave to file. Neither the special procedure adopted in this case nor our rules of practice contemplate replies to replies and the motion for leave to file is denied.
In the paragraphs below, the tariffs of Phillips Alaska Pipeline Corporation are not included. As noted in Appendix 1, a separate order with respect to Phillips will be issued before July 20, 1977.
It is ordered, That the operation of the schedules authorized below be, and it is hereby, suspended, and that the use thereof in interstate or foreign commerce be deferred, from June 30, 1977, and to and including January 29, 1978, except as to I.C.C. 2, published by Amerada Hess, which bears a July 1 effective date and the operation of which is suspended to January 31, 1978, unless otherwise ordered by this Commission;
AMERADA HESS PIPELINE CORPORATION I.C.C. NO. 2
ARCO PIPE LINE COMPANY I.C.C. NO. 1030 on page 14, the rate of $6.04
BP PIPELINES, INC.
I.C.C. 2
EXXON PIPELINE COMPANY I.C.C. NO. 125
MOBIL ALASKA PIPELINE COMPANY I.C.C. NO. 2
SOHIO PIPE LINE COMPANY I.C.C.-NO. 742
on the title page, the rate of $6.16
UNION ALASKA PIPELINE COMPANY I.C.C. NO. 2
It is further ordered, That an investigation be, and it is hereby, instituted into and concerning the lawfulness of the rates contained in the suspended schedules, as aforesaid, as well as the interim schedules authorized to be filed, pursuant to section 15(1) and section 15(7), with a view to making such findings and orders in the premises as the facts and circumstances shall warrant. In the event the schedules here under investigation are changed, amended or reissued, upon termina*794tion of the suspension period and the investigation not having been concluded, such changed, amended or reissued schedules will be included in this investigation.
It is further ordered, That the investigation in this proceeding shall include all matters and issues with respect to the lawfulness of the said rates under the Interstate Commerce Act.
It is further ordered, That the named carriers be, and they are hereby, authorized to file, upon not less than one day’s notice, interim rates not exceeding the following amounts:
Amerada Hess Pipeline Corporation $4.85
Arco Pipe Line Company 4.91
BP Pipelines Inc. 4.68
Exxon Pipeline Company 5.10
Mobil Alaska Pipeline Company 4.84
Sohio Pipe Line Company 4.70
Union Alaska Pipeline Company 4.89
subject, however, to the condition that the carriers keep account and that (1) the interim tariffs contain a refund provision to the effect that if the rates charged exceed the rates subsequently authorized or prescribed by the Interstate Commerce Commission, the carriers will refund the difference between the rates charged and any rates which may subsequently be authorized or prescribed by the Interstate Commerce Commission with interest computed in accordance with section 15(8) (e) of the act, added by the Railroad Revitalization and Regulatory Reform Act of 1976; and (2) that the carriers file (effective on not less than 1 days notice) a similar refund provision applicable to the original proposed rates. Although that section does not apply to pipelines, it represents the latest expression of Congressional interest, and the Commission’s notice of April 14, 1977 indicated its applicability to all carriers under Part I. It should also be noted that the carriers at the oral argument expressed assent to an even higher rate of interest in the event of an investigation without suspension. Under the circumstances, we believe interest computed in accordance with section 15(8) (e) would be fair to all parties.
And it is further ordered, That a copy of this order be filed with the schedules in the office of the Interstate Commerce Commission, and that copies hereof be served upon the carriers parties to the said schedules, and that the said carriers be, and they are hereby, made respondents to this proceeding.
By the Commission. (Commissioner Brown approves the order except insofar as it denies the motion of the Department of Justice for leave to file a response to the carrier’s responses).
H. G. HOMME, JR.,
Acting Secretary.
(SEAL)
*795INITIAL TARIFFS APPLICABLE TO THE TRANS ALASKA PIPELINE SYSTEM
Carrier Tariff No. Filing Date Effective Date
Amerada Hess I.C.C. No. 1 (rules) June 1, 1977 July 1, 1977
Pipeline Corporation I.C.C. No. 2 (rate) June 1, 1977 July 1, 1977
Arco Pipeline Company I.C.C. No. 1030 May 27, 1977 June 30, 1977
BP Pipelines, Inc. I.C.C. No. 1 (rules) June 3, 1977 June 20, 1977
I.C.C. No. 2(rate) June 3, 1977 June 30, 19771
Exxon Pipeline I.C.C. No. 124 (rules) June 8, 1977 June 20, 1977
Company I.C.C. No. 125 (rate) June 8, 1977 June 30, 1977
Mobil Alaska I.C.C. No. 1 (rules) June 10, 1977 June 20, 1977
Pipeline Company I.C.C. No. 2 (rate) June 10, 1977 June 30, 19771
Phillips Alaska I.C.C. No. 1 (rules) June 20, 1977 July 20, 19772
Pipeline Corporation I.C.C. No. 2 (rate) June 20, 1977 July 20, 19772
Sohio Pipeline Company I.C.C. No. 742 June 3, 1977 June 30, 19771
Union Alaska I.C.C. No. 1 (rules) June 15, 1977 June 30, 1977
Pipeline Company I.C.C. No. 2 (rate) June 15, 1977 June 30, 1977
Tariff rules filed by all of the named carriers except Phillips were placed under investigation in No. 36611 by order of the Commission served June 17,1977. Consideration of the rates filed by those carriers was deferred to the present order.
*796
*797FOOTNOTES TO BASIC CAEEIEE DATA
Amerada Hess
1. Reported in undated statement submitted by Amerada Hess entitled “General Assumptions for Calculating TAPS Tariff as of May, 1977.”
2. Estimated Alyeska removal cost ($1,049 million) divided by 25 years, multiplied by Amerada Hess’ ownership share (1.50 percent).
3. Amerada Hess’ share (1.50 percent) of Alyeska investment ($7,959 million for facilities plus $16 million for land), plus Amerada Hess’ capitalized construction interest ($22,670,500) and capitalized overhead costs ($1,735,400) as reported by letter from R. K. Stafford dated May 13,1977.
4. Reported in letter from R. K. Stafford dated June 1,1977.
5. Reported in “General Assumptions” statement.
6. Reported in “General Assumptions” statement.
7. Interest divided by debt.
8. Investment minus debt.
9. Staff estimate based on reported investment figures.
Arco
1. Reported in letter from J. D. Wessling dated June 1,1977.
2. Estimated Alyeska removal cost ($1,049 million) divided by 25 years, multiplied by Arco’s ownership share (21 percent).
3. Arco’s share (21 percent) of Alyeska investment ($7,959 million for facilities, plus $16 million for land), plus Arco's capitalized construction interest ($257,100,000), as reported in letter from J. D. Wessling dated June 1,1977.
4. Reported in letter dated June 1,1977.
5. Interest divided by interest rate.
6. Reported in June 1,1977 letter.
7. Weighted average interest rate of debt issues shown in a letter from J. D. Wessling dated June 2,1977.
8. Investment minus debt.
9. Staff estimate based on reported investment figures.
BP
1. Reported in BP’s submission of June 15,1977, in explanation of filed tariff rates.
2. Estimated Alyeska removal cost ($1,049 million) divided by 25 years, multiplied by BP’s ownership share (15.84 percent).
3. BP’s share (15.84 percent) of Alyeska investment ($7,959 million for facilities plus $16 million for land), plus BP’s capitalized construction interest and overhead costs ($204 million), with the latter as reported in BP’s submission of June 15,1977.
4. Reported in BP’s submission of June 15,1977.
5. Investment less equity.
6. Reported in a letter from P, H. Jones dated May 27,1977.
7. Interest divided by debt.
8. Reported in a letter from P. H. Jones dated June 14,1977.
9. Staff estimate based on reported investment figures.
Exxon
1. Reported in Appendix A to Exxon’s reply to protests.
2. Estimated Alyeska removal cost ($1,049 million) divided by 25 years, multiplied by Exxon’s ownership share (20 percent).
3. Exxon’s share (20 percent) of Alyeska investment ($7,959 million for facilities, plus $16 million for land), plus Exxon’s capitalized construction interest ($242 million), with the latter as reported in a letter from J. D. Sturtevant dated March 21,1977.
4. Reported in a letter from J. D. Sturtevant dated June 1,1977.
5. Interest divided by interest rate.
6. Reported in Appendix A to Exxon’s reply to protests.
7. Reported in Appendix A to Exxon’s reply to protests.
8. Investment minus debt.
9. Staff estimate based on reported investment figures.
*798Mobil
1. Reported in a letter from C. R. Thompson dated May 27,1977.
2. Estimated Alyeska removal cost ($1,049 million) divided by 25 years, multiplied by Mobil’s ownership share (5 percent).
3. Mobil’s investment, including capitalized construction interest ($57.7 million) and capitalized overhead costs ($3.2 million) as reported in a letter from C. R. Thompson dated April 29,1977.
4. Reported in letter dated May 27,1977.
5. Debt presumed to be 100 percent of investment. Data filed by Mobil gives no indication of equity financing.
6. Reported in letter dated May 27,1977.
7. Interest divided by debt.
8. Investment minus debt.
9. Staff estimate based on reported investment figures.
Phillips
1. Reported in a letter from James Mullen dated July [sic; June] 20,1977.
2. Estimated Alyeska removal cost ($1,049 million) divided by 25 years, multiplied by Phillips' ownership share (1.66 percent).
3. Phillips’ share (1.66 percent) of Alyeska investment ($7,959 million for facilities plus $16 million for land), plus Phillips’ capitalized construction interest ($14,944,000) and capitalized overhead costs ($40,000), with the latter items as reported in letter of June 20,1977. Working capital ($1,480,000) excluded.
4. Reported in undated statement entitled “Phillips Petroleum Company—Estimate of Expenses.”
5. Reported in letter of June 20,1977.
6. Reported in letter of June 20,1977.
7. Interest divided by debt.
8. Investment minus debt.
9. Staff estimate based on reported investment figures.
Sohio
1. Reported in a letter from J. T. Boltacz dated June 13,1977.
2. Estimated Alyeska removal cost ($1,049 million) divided by 25 years, multiplied by Sohio’s ownership share (33.34 percent).
3. Sohio’s investment (8,138.5 million) as reported in letter dated June 13, 1977. Working capital ($18 million) excluded. Subtracting Sohio’s share of Alyeska investment would indicate $479,635,000 as capitalized construction interest and overhead costs.
4. Reported in letter dated June 13,1977.
5. Reported in letter dated June 18,1977.
6. Reported in letter dated June 13,1977.
7. Interest divided by debt.
8. Investment minus debt.
9. Staff estimate based on reported investment figures.
Union
1. Reported in a letter dated May 27,1977, from E. J. Takach.
2. Estimated Alyeska removal cost ($1,049 million) divided by 25 years, multiplied by Union’s ownership share (1.66 percent).
3. Union’s share (1.66 percent) of Alyeska investment ($7,975 for facilities plus $16 million for land), plus Union’s capitalized construction interest ($10.6 million), with the latter as reported in a letter from David M. Schwartz dated June 14,1977.
4. Reported in letter dated May 27,1977.
5. Reported in letter dated June 14,1977.
6. Computed from debt description in letter dated June 14,1977.
7. Interest divided by debt.
8. Investment minus debt.
9. Staff estimate based on reported investment figures.
*799
*800
*801
. No. 77-2392, Petition of Mobil Alaska Pipeline Company (Mobil) to Annul, Set Aside and Enjoin Enforcement of an Order of the Interstate Commerce Commission and Applications and Motions for Temporary Restraining Order and Interlocutory Injunction. The respondents in this case were the United States, the Interstate Commerce Commission (ICC or Commission) and the latter’s individual Commissioners. The State of Alaska moved to appear as a party. The Arctic Slope Regional Corporation moved to intervene. Both opposed Mobil’s petition. Sohio Pipe Line Company moved to appear as a party in support of Mobil’s petition, as did Amerada Hess Pipeline Corporation. Union Alaska Pipeline Company moved to appear as a party.
No. 77-2412, Petition to Enjoin, Set Aside, Suspend and Review Order of the Interstate Commerce Commission and Motion to Stay, Restrain and Suspend Order of the Interstate Commerce Commission filed by BP Pipelines, Inc. (BP), naming the United States and the ICC as respondents.
No. 77-2437, Petition for Review and Application for Interlocutory Injunction filed by Arco Pipe Line Company (Arco). The United States, the ICC and its individual Commissioners were named as respondents. Alaska also sought leave to appear as a party in opposition to Arco’s petition.
No. 77-2421, Petition for Review and Motion for Expedited Consideration or, in the Altemafive, for a Stay Pending Review, filed by Exxon Pipeline Company (Exxon), naming the ICC and the United States as respondents. Union Alaska Pipeline Company moved to appear as a party.
The United States moved for consolidation and to dismiss. The motion for consolidation was granted from the Bench during oral argument on July 19, 1977. The court hereby grants all motions to intervene.
. In 1968 massive reservoirs of oil were discovered at Prudhoe Bay. Plans to construct the pipeline were announced in 1970. From its beginning the pipeline has been grist for judicial mills. See, e. g., Wilderness Society v. Morton, 156 U.S.App.D.C. 121, 479 F.2d 842 (1975) (en banc); Alyeska Pipeline Service Co. v. Wilderness Society, 421 U.S. 240, 95 S.Ct. 1612, 44 L.Ed.2d 141 (1975), rev’g 161 U.S.App. D.C. 446, 495 F.2d 1026 (1974). Indeed, it literally took an act of Congress to prevent further environmental litigation. Trans-Alaska Pipeline Authorization Act, 43 U.S.C.A. § 1652(d). Construction was thus delayed until 1974 and took three years.
Oil began to enter the pipeline on June 20, 1977. An explosion and fire at pump station No. 8 on July 8, 1977, resulted in a temporary shutdown. The parties have informed the Court that the first oil is expected to reach Valdez around July 26, 1977.
. Each of the following companies owns an undivided interest in TAPS:
Company Percentage Ownership
Mobil Alaska Pipeline Co. 5.00%
Sohio Pipe Line Co. 33.34%
Arco Pipe Line Co. 21.00%
Exxon Pipeline Co. 20.00%
BP Pipelines Inc. 15.84%
Phillips Alaska Pipeline Corp. 1.66%
Union Alaska Pipeline Co. 1.66%
Amerada Hess Pipeline Corp. 1.50%
These companies are subject to ICC regulation by virtue of the Interstate Commerce Act, 49 U.S.C.A. § l(l)(b), which covers common carriers engaged in the transportation of oil by pipeline.
. Tariffs must be filed with the ICC pursuant to 49 U.S.C.A. § 6(1).
. Because Phillips, the eighth owner, filed its tariff on June 20, 1977 with an effective date of July 20, the time for filing protests had not expired by June 28, the date of the ICC's order. Phillips’ tariff was thus not covered by the Order and is not before this Court,
. Alaska owns a one-eighth royalty interest in the oil from the Prudhoe Bay fields. In addition, Alaska has an oil production severance tax, Both the value of the royalty oil and the severance tax are tied to the value of the oil at the point of production, i. e., the wellhead value. Alaska contends that the wellhead value is generally determined by the market price less the transportation costs. Therefore, as the TAPS carrier rates increase, the value of Alaska’s interest decreases.
. Prior to the enactment of the Alaska Native Claims Settlement Act (ANCSA), 43 U.S.C.A. §§ 1601-1627, the Inupiat Eskimos held claims of unextinguished aboriginal title to the entire Arctic Slope of the State of Alaska, an area which encompasses Prudhoe Bay and much of the land over which TAPS was constructed. The Arctic Slope Regional Corporation is one of 12 corporations established pursuant to ANCSA to conduct Native Alaskan business for profit. 43 U.S.C.A. § 1606. As compensation for the extinguishment of all aboriginal land claims, ANCSA granted Alaskan Natives fee title to approximately 400 million acres of land. 43 U.S.C.A. §§ 1611, 1613. All future revenues derived from that land will be the property of the Native people. 43 U.S.C.A. § 1606. ANCSA further provided for cash compensation of $962,500,000 to be paid over a period of years, a portion of which is to be derived from a 2% royalty on the wellhead value of all crude oil production in Alaska under state or federal leases. 43 U.S.C.A. §§ 1605, 1608. Thus, on their theory, the Native Alaskans’ revenue is inversely related to the rise in TAPS tariffs.
. Recognizing the importance of the controversy, the ICC, in an extraordinary move, bypassed its usual procedural channels and took the suspension proceeding for its own direct consideration. While Commission regulations consider a protest and petition to suspend “as addressed to the discretion of the Commission,” 49 C.F.R. § 1100.42 (1976), suspension protests and petitions are in practice routinely referred to the Board of Suspension. See 49 C.F.R. § 1100.200 (1976); Mobil Memorandum In Support of Application for Interlocutory and Temporary Restraining Order at 7; Reply of Interstate Commerce Commission in Opposition To Application For Interlocutory Injunction and Temporary Restraining Order at 4. The Commission heard arguments for one full day before issuing its suspension Order.
Although a transcript of that hearing was made, the papers on file with the Court contain only excerpts from that proceeding. E. g., Appendix A to Justice Department’s Memorandum in Support of Motion to Dismiss; Appendix C to Memorandum of the State of Alaska in Opposition to Applications for Interlocutory Injunction and Temporary Restraining Order. Also, the tariff filings themselves, with any supporting submissions, were not filed with the Court. On file with the Court, however, were several exhibits such as “Reply of Exxon Pipeline Company to Protests” (Appendices of Exxon Pipeline Company for Expedited Consideration, or in the Alternative, Stay Pending Review) and statements by C. R. Thompson, Controller-Treasurer of Mobil Alaska Pipeline Co. (Appendix D to Memorandum of the State of Alaska in Opposition to Application for Interlocutory Injunction and Temporary Restraining Order).
. The briefs of the parties contained references to the information which the ICC appar*779ently had before it during the suspension proceeding. Such information included: (i) written representations in the form of protests from the State of Alaska, the Arctic Slope Regional Corporation, the United States Department of Justice, and the Bureau of Investigations and Enforcement of the ICC (Memorandum of the State of Alaska in Opposition to Applications for Interlocutory Injunction and Temporary Restraining Order at 2); (ii) verified statements offered by the TAPS carriers in support of their rate calculations (Memorandum in Support of Exxon Pipeline Company’s Motion for Expedited Consideration or, in the Alternative, for a Stay Pending Review at 46) [hereinafter Exxon Memorandum]; (iii) statement of Dr. Michael J. Ileo (submitted with Alaska’s protest) which discusses the unreasonableness of carriers’ rate calculations (Exxon Memorandum at 46); (iv) sworn testimony of Raymond B. Gary, a Managing Director of Morgan Stanley & Company, and Dr. Ezra Solomon, Dean Witter Professor of Finance at the Graduate School of Business of Stanford University, filed in Ex Parte No. 308, Valuation of Common Carrier Pipelines (Exxon Memorandum at 38); (v) letters sent from Mobil Alaska Company to ICC (obtained under the Freedom of Information Act, 5 U.S.C.A. § 552) which . deal with such topics as TAPS start-up, depreciation, dismantling and restoration, anticipated salvage, and estimated annual operating expenses (Memorandum of the State of Alaska in Opposition to Applications for Interlocutory Injunction and Temporary Restraining Order at 25-6); (vi) calculation of the rates of return on valuation for 90 regulated pipelines for the years 1970-72, made by George M. Stafford, former ICC Chairman (Exxon Memorandum at 40-1); and (vii) a variety of carrier-provided data concerning the normal traffic volume for the beginning years of TAPS, costs, depreciation charges, and investment calculations (ICC June 28 Order at 5-7 and Appendices to Order).
. The Order is set forth as an Appendix to this opinion.
. 49 U.S.C.A. § 15(1) reads in pertinent part as follows:
“Whenever, after full hearing, upon a complaint made as provided in section 13 of this title, or after full hearing under an order for investigation and hearing made by the Commission on its own initiative, either in extension of any pending complaint or without any complaint whatever, the Commission shall be of opinion that any individual or joint rate, fare, or charge whatsoever demanded, charged, or collected by any common carrier or carriers subject to this chapter for the transportation of persons or property, as defined in section 1 of this title ... is or will be unjust or unreasonable . . . the Commission is authorized and empowered to determine and prescribe what will be the just and reasonable individual or joint rate, fare, or charge, or rates, fares, or charges, to be thereafter observed in such case, or the maximum or minimum, or maximum and minimum, to be charged and to make an order that the carrier or carriers shall cease and desist from such violation to the extent to which the Commission finds that the same does or will exist, and shall not thereafter publish, demand, or collect any rate, fare, or charge for such transportation other than the rate, fare, or charge so prescribed, or in excess of the maximum or less than the minimum so prescribed, as the case may be . .”
. 49 U.S.C.A. § 15(7):
“Whenever there shall be filed with the Commission any schedule stating a new individual or joint rate, fare, or charge, or any new individual or joint classification, or any new individual or joint regulation or practice affecting any rate, fare, or charge, the Commission shall have, and it is given, authority, either upon complaint or upon its own initiative without complaint, at once, and if it so orders without answer or other formal pleading by the interested carrier or carriers, but upon reasonable notice, to enter upon a hearing concerning the lawfulness of such rate, fare, charge, classification, regulation, or practice; and pending such hearing and the decision thereon the Commission, upon filing with such schedule and delivering to the carrier or carriers affected thereby a statement in writing of its reasons for such suspension, may from time to time suspend the operation of such schedule and defer the use of such rate, fare, charge, classification, regulation, or practice, but not for a longer period than seven months beyond the time when it would otherwise go into effect; and after full hearing, whether completed before or after the rate, fare, charge, classification, regulation, or practice goes into effect, the Commission may make such order with reference thereto as would be proper in a proceeding initiated after it had become effective. If the proceeding has not been concluded and an order made within the period of suspension, the proposed change of rate, fare, charge, classification, regulation, or practice shall go into effect at the end of such period; but in case of a proposed increased rate or charge for or in respect to the transportation of property, the Commission may by order require the interested carrier or carriers to keep accurate *780account in detail of all amounts received by reason of such increase, specifying by whom and in whose behalf such amounts are paid, and upon completion of the hearing and decision may by further order require the interested carrier or carriers to refund, with interest, to the persons in whose behalf such amounts were paid, such portion of such increased rates or charges as by its decision shall be found not justified. At any hearing involving a change in a rate, fare, charge, or classification, or in a rule, regulation, or practice, after September 18, 1940, the burden of proof shall be upon the carrier to show that the proposed changed rate, fare, charge, classification, rule, regulation, or practice is just and reasonable, and the Commission shall give to the hearing and decision of such questions preference over all other questions pending before it and decide the same as speedily as possible. . .
. According to the ICC, these rates reflect a 10% rate of return on tentative valuation. See pp. 4-8 of the ICC Order, and Appendices 2-5 thereto.
. See note 1, supra.
. Judge Leventhal in his concurring opinion in Continental Airlines, Inc. v. CAB, 173 U.S.App. D.C. 1, 522 F.2d 107 at 131 (1975) (en banc), emphasized the evasion of judicial review as the key to Moss.
. As we noted previously, if the Commission does not complete its investigation within seven months from the date of its suspension Order, the carriers’ originally filed rates automatically go into effect.
. Under § 15(7) the Commission may require carriers to keep records and make refunds after the seven-month period has expired. This expressly conferred authority is not what we rely upon—it relates to “a proposed increased rate or charge.”
Corrected to include changes set forth in Correction Notice dated June 29, 1977.
. Moss v. C. A. B., 430 F.2d 891, is clearly distinguishable. That case involved ex parte meetings and the substitution by the Board of “a complete and innovative scheme for setting all passenger rates for the Continental United States,” with an indication that such a filing would not be *788suspended. In Moss, the court noted that unlike the Interstate Commerce Act, the Federal Aviation Act has no provision for reparations, thus rendering the procedural safeguards of the Aviation Act the public’s sole defense. The court also pointed out its view might have been different if interim action were involved. In the present TAPS proceeding, both the proposed rates and any interim rates which may be filed will remain subject to full investigation. See also Consolidated Edison Co. of New York v. F. P. C., 168 U.S.App.D.C. 92, 512 F.2d 1332, 1340, distinguishing Moss v. C. A. B. and stressing the behind-the-scenes aspect of the Moss case.
. It should be noted that at oral argument several protestants did not dispute the use of 25 years at the suspension level.
. An allowance for working capital has, however been included in the staff evaluation estimates reflected in Appendix 2.
. Postponed from June 20, 1977.
. Because of the later effective date of these tariffs, the time for filing protests and replies to them has not yet expired. The question of their suspension or investigation will be the subject of a separate order by the Commission, to be issued prior to July 20, 1977.