Dispositive of the OHahoma Corporation Commission’s [Commission] dismissal motion is our answer to the question whether Spar-lin and Rozelle’s repeated attempts to have the March 29, 1995 Commission order modified extended the time to appeal from that order. We answer in the negative and dismiss the appeal as untimely.
I
THE ANATOMY OF LITIGATION
OHahoma Corporation Commission Order No. 391039 was entered on March 29, 1995.1 The Commission found Sparlin in contempt of its rules and ordered that she forfeit her operator’s bond, plug a well and pay a $1,250.00 fine. A copy of the March 29 order was mailed to both Sparlin and Rozelle on March 30,1995.
*742On April 25, 1995 Sparlin and Rozelle moved for rehearing. By its Order No. 394148 — entered July 26, 1995 — the Commission recast Sparlin’s rehearing plea as a motion to reconsider, granted rehearing and modified its earlier order by no longer requiring immediate forfeiture of her operator’s bond.
Sparlin and Rozelle moved once again for rehearing, this time of both the March 29 order and its July 26, 1995 modification. This motion was denied by the Commission’s December 22, 1995 Order No. 398195, copies of which were mailed to the parties on December 29, 1995. The petition in error came here on February 15, 1996. In its response the Commission moved for the appeal’s dismissal as untimely.
II
COMMISSION ORDERS BECOME FINAL BY FORCE OF LAW AFTER 30 DAYS; SPARLIN’S PLEA FOR REVIEW CAME TOO LATE
A Corporation Commission order must be appealed, if at all, within thirty days of its entry.2 No motion to modify or reconsider an appealable Commission order will extend the time to appeal from that order.3 Moreover, appeal time cannot be interminably extended and the review delayed by successive motions to vacate or reconsider an appealable decision.4 See the provisions of 12 O.S.1991 § 991(a).5
The March 29 order was appealable within 30 days of its entry. It became final 30 days later when no appeal was brought. To be effective as a modification of the March 29 order, the July 26 Commission ruling had to be entered within 30 days of March 29.6 If the July 26 order was to be treated as separately appealable, an appeal from that decision would be untimely if brought here after 30 days from its entry.
Because no timely petition in error was lodged here from either order, both are now beyond this court’s reviewing cognizance.7 Sparlin and Rozelle’s plea for review is hence untimely.
Appeals from the Commission must be prosecuted in the manner prescribed for civil appeals from the district courts. Procedural symmetry for district court orders and those of the Corporation Commission is required by Art. 9, § 20, Okl. Const.8 See also *743Art. 5, § 46, Okl. Const.9 A district court order triggers appeal time when it is filed.10 The functional equivalent of district-court “filing” consists of three steps by which a Commission order is deemed entered.11 These occur when (a) an assigned number is stamped on its face, (b) the Commissioners or the Secretary (with the Commissioners’ approval) sign it and (c) it is inscribed with the language “Done and performed this_ day of_” See the pertinent terms of OAC 165: 5 — 1—6(e).12
Ill
SUMMARY
The Corporation Commission’s decision to sanction Sparlin for failure to comply with its rules was entered on March 29, 1995. A later order — that claims to modify the March 29 order — was entered July 26, 1995. Spar-lin and Rozelle’s attempt to have these orders modified did not extend the time to appeal for their review. Because no proceedings to review either order was brought here within 30 days of its entry, this appeal must be dismissed as untimely.
ALMA WILSON, C.J., and HODGES, LAVENDER, SIMMS, HARGRAVE, OP ALA and WATT, JJ., concur. KAUGER, V.C.J., and SUMMERS, J., concur in result.. Order No. 391039 is signed by all three commissioners and bears the required statement, “Done and performed this 29th day of March, 1995."
. See 52 O.S.1991 § 113, whose pertinent terms provide:
"All appeals under the provisions of this Act must be taken by filing in the Supreme Court a petition in error within thirty (30) days from the date on which the order, rule, regulation, judgment, decree or final action of the Commission appealed from shall have been made, rendered or taken....
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The time limit prescribed herein for filing the petition in error may not be extended.”
. Turpen v. Oklahoma Corp. Com'n, Okl., 769 P.2d 1309, 1318-19 (1988).
. Salyer v. National Trailer Convoy, Inc., Okl., 727 P.2d 1361, 1363 n. 5 (1986).
. The terms of 12 O.S.1991 § 991(a) are:
"The right of a party to perfect an appeal from a judgment, order or decree of the trial court to the Supreme Court shall not be conditioned upon his having filed in the trial court a motion for new trial, but in the event a motion for a new trail is filed in the trial court by a party adversely affected by the judgment, order or decree, no appeal to the Supreme Court may be taken until subsequent to the ruling by the trial court on the motion for a new tried. This provision shall not apply, however, to an appeal from an order of the Corporation Commission." [Emphasis added.]
. See Turpén, supra note at 1318-19.
. If the July 26 order had been a timely modification of the March 29 order — because it was entered within 30 days of the earlier order’s filing, it would have replaced the earlier memorial. The former would no longer be appealable. We need not and do not today express an opinion whether the July 26 order was separately appealable, nor whether its terms are effective as a modification of the March 29 order.
. The pertinent provisions of Art. 9, § 20, Okl. Const., are:
"From any action of the Corporation Commission ..., an appeal may be taken ... directly to the Supreme Court of Oklahoma, in the manner and in the same time in which appeals *743may be taken to the Supreme Court from the District Courts...."
. The terms of Art. 5, § 46, Okl. Const., state in pertinent part:
"The Legislature shall not, except as otherwise provided in this Constitution, pass any local or special law authorizing:
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Regulating the practice or jurisdiction of ... in judicial proceedings or inquiry before the courts ... or other tribunals...." [Emphasis supplied.]
See Reynolds v. Porter, Okl., 760 P.2d 816, 822 (1988); Maule v. Independent School Dist. No. 9., Okl., 714 P.2d 198, 203-204 (1985).
. See the pertinent terms of 12 O.S.Supp.1993 § 990A(A) are:
"An appeal to the Supreme Court of Oklahoma, if taken, must be commenced by filing a petition in error with the Clerk of the Supreme Court of Oklahoma within thirty (30) days from the date a judgment, decree or appeal-able order prepared in conformance with Section 696.3 of this title is filed with the clerk of the trial court.”
See also the pertinent terms of 12 O.S.Supp.1993 § 696.3, effective October 1, 1993, are:
"A. Judgments, decrees and appealable orders that are filed with the clerk of the court shall contain:
1. A caption setting forth the name of the court, the names and designation of the parties, the file number of the case and the title of the instrument;
2. A statement of the disposition of the action, proceeding, or motion, including a statement of the relief awarded to a party or parties and the liabilities and obligations imposed on the other party or parties;
3. The signature and title of the court;....”
. The date of entry is that reflected on the face of the order in the "done and performed” clause. See the pertinent terms of OAC 165: 5-l-6(c), infra note.
. The terms of OAC 165: 5-l-6(c) are:
"Every order of the Commission issues and is effective, unless an effective date is otherwise stated in the order, the date such order is signed by the Commissioners or by the Secretary upon approval of the Commissioners. Every order shall contain the language: "Done and performed this_day of_". Periods of time prescribed by the order, or by statute, or by the rules of this Chapter shall run from the “Done and performed" date.”