Case: 22-1834 Document: 47 Page: 1 Filed: 01/03/2024
United States Court of Appeals
for the Federal Circuit
______________________
PHILADELPHIA ENERGY SOLUTIONS REFINING
AND MARKETING, LLC,
Plaintiff-Appellant
v.
UNITED STATES,
Defendant-Appellee
______________________
2022-1834
______________________
Appeal from the United States Court of Federal Claims
in No. 1:19-cv-00510-EHM, Judge Edward H. Meyers.
______________________
Decided: January 3, 2024
______________________
SHAY DVORETZKY, Skadden, Arps, Slate, Meagher &
Flom LLP, Washington, DC, argued for plaintiff-appellant.
Also represented by KYSER BLAKELY, ARMANDO GOMEZ,
PARKER ANDREW RIDER-LONGMAID, JACLYN MARIE ROEING.
JUDITH ANN HAGLEY, Tax Division, United States De-
partment of Justice, Washington, DC, argued for defend-
ant-appellee. Also represented by ARTHUR THOMAS
CATTERALL, DAVID A. HUBBERT, FRANCESCA UGOLINI.
______________________
Case: 22-1834 Document: 47 Page: 2 Filed: 01/03/2024
2 PHILADELPHIA ENERGY SOLUTIONS REFINING v. US
Before LOURIE, REYNA, and CHEN, Circuit Judges.
LOURIE, Circuit Judge.
Philadelphia Energy Solutions Refining and Market-
ing, LLC (“Philadelphia Energy”) appeals from the decision
of the United States Court of Federal Claims (“the Claims
Court”) granting summary judgment that Philadelphia En-
ergy is not entitled to tax refunds for excise taxes it paid on
fuel mixtures of butane and gasoline. Phila. Energy Sols.
Refin. & Mktg., LLC v. United States, 159 Fed. Cl. 230
(2022) (“Decision”). Specifically, the Claims Court held
that those fuel mixtures did not qualify as “alternative fuel
mixtures” to which the tax credit in 26 U.S.C. § 6426(e)1
applied.
Because the Claims Court correctly concluded that bu-
tane is not an “alternative fuel” for purposes of § 6426, Phil-
adelphia Energy’s mixture of butane with gasoline does not
qualify for the alternative fuel mixture credit. We there-
fore affirm.
BACKGROUND
I
For nearly a century, Congress has levied excise taxes
on the sale of motor fuels used in transportation. See Rev-
enue Act of 1932, Pub. L. No. 72-154, § 617(a), 47 Stat. 169,
266 (1932). The prime example of such a fuel is gasoline.
And since at least 1954, Congress has also imposed an ex-
cise tax on a category of alternative fuels used in
1 Section 6426 of the Internal Revenue Code (“the
Tax Code”) was amended by the Further Consolidated Ap-
propriations Act, 2020. Pub. L. 116-94, 133 Stat. 2534,
3233–34 (2019). Unless otherwise indicated, all references
to the Tax Code and its implementing regulations are to
the pre-2019 versions in effect prior to those amendments
and at the time of Philadelphia Energy’s relevant conduct.
Case: 22-1834 Document: 47 Page: 3 Filed: 01/03/2024
PHILADELPHIA ENERGY SOLUTIONS REFINING v. US 3
transportation, originally named “special motor fuels.” See
Excise Tax Reduction Act of 1954, Pub. L. No. 83-324,
§ 507(b), 68 Stat. 37, 44 (1954); see also Internal Revenue
Code of 1954, Pub. L. No. 83-591, § 4041(b), 68A Stat. 1,
478 (1954). Examples of fuels that have historically been
deemed special motor fuels include benzol, benzene, and
liquefied petroleum gases. See Internal Revenue Code of
1954, § 4041(b). Within the petroleum industry, butane is
generally considered to be a liquefied petroleum gas. See,
e.g., Liquefied petroleum gases (LPG), U.S. Energy Infor-
mation Administration, https://www.eia.gov/tools/glossary
/index.php?id=L.
The Tax Code creates a dichotomy between the excise
taxes imposed on those two types of fuels, where “taxable
fuels,” such as gasoline, are taxed under 26 U.S.C. § 4081,
and “special motor fuels” are taxed under 26 U.S.C. § 4041.
The statute expressly excludes from the tax imposed by
§ 4041 any fuel that is taxed under § 4081. See Internal
Revenue Code of 1954, § 4041(b); see also 26 U.S.C.
§ 4041(a)(2)(A) (imposing “a tax on any liquid (other than
. . . any product taxable under section 4081 . . . )”). In other
words, the excise taxes on “taxable fuels” and “special mo-
tor fuels” are, and have always appeared to be, mutually
exclusive.
In 2005, Congress enacted the Safe, Accountable, Flex-
ible, Efficient Transportation Equity Act: A Legacy for Us-
ers (“the Act”), renaming “special motor fuels” as
“alternative fuels,” and creating two new tax credits for
producers of alternative fuels and alternative fuel mix-
tures. Pub. L. No. 109-59, § 11113, 119 Stat. 1144, 1946–49
(codified at 26 U.S.C. § 6426). Specifically, the Act pro-
vided an “alternative fuel credit” to offset the excise tax on
alternative fuels (previously, “special motor fuels”) im-
posed by § 4041, and an “alternative fuel mixture credit” to
offset the excise tax on taxable fuels imposed by § 4081.
26 U.S.C. § 6426(a)(1)–(2).
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4 PHILADELPHIA ENERGY SOLUTIONS REFINING v. US
This appeal concerns the scope and applicability of the
alternative fuel mixture credit.
II
Over a decade after Congress passed the Act, Philadel-
phia Energy filed administrative claims with the Internal
Revenue Service (“IRS”) seeking tax refunds for each tax
quarter in the years 2014, 2015, 2016, and 2017. 2 Decision
at 234. Philadelphia Energy claimed that, during those tax
years, it produced, sold, and paid excise taxes on alterna-
tive fuel mixtures of butane and gasoline that were entitled
to the alternative fuel mixture credit. When the IRS did
not respond to its refund claims, Philadelphia Energy filed
suit in the Claims Court arguing that, because butane is a
liquefied petroleum gas, it is an alternative fuel that, when
mixed with gasoline, qualifies for that credit. See id. at
236. Based on its interpretation of the statute, Philadel-
phia Energy claims that it is entitled to more than $550
million in refunds and interest for taxes it paid on those
mixtures. Id. at 233.
The Claims Court denied Philadelphia Energy’s motion
for partial summary judgment and granted the govern-
ment’s cross-motion for summary judgment, holding that
the statute’s terms make clear that butane is not an
2 Philadelphia Energy’s refund claim for tax year
2017 is not at issue here. Congress’s amendments to the
Act in 2019, which made clear that mixing gasoline and bu-
tane does not qualify as an “alternative fuel mixture,” see
supra note 1, apply to claims filed at the IRS on or after
January 8, 2018. Because Philadelphia Energy’s 2017
claim was filed after that date (i.e., on October 16, 2018), it
is subject to the revised language of the statute. This fore-
closes Philadelphia Energy’s arguments as to that claim.
See Further Consolidated Appropriations Act
§ 133(b)(2)(B); see also Decision at 235.
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PHILADELPHIA ENERGY SOLUTIONS REFINING v. US 5
“alternative fuel” for purposes of the alternative fuel mix-
ture credit. Id.
Philadelphia Energy timely appealed. We have juris-
diction under 28 U.S.C. § 1295(a)(3).
DISCUSSION
Whether or not a mixture of butane and gasoline qual-
ifies for the alternative fuel mixture credit is a question of
first impression for this court. We observe, however, that
two of our sister circuits have previously answered this
question in the negative. Vitol, Inc. v. United States,
30 F.4th 248 (5th Cir. 2022); U.S. Venture, Inc. v. United
States, 2 F.4th 1034 (7th Cir. 2021). For the reasons pro-
vided below, we align ourselves with those courts and hold
that such a mixture is not an “alternative fuel mixture” en-
titled to the alternative fuel mixture credit.
Because this case presents a question of pure statutory
interpretation, our review is de novo. Hitkansut LLC v.
United States, 958 F.3d 1162, 1166 (Fed. Cir. 2020).
I
Our analysis begins with the text of the Tax Code. Rot-
kiske v. Klemm, 140 S.Ct. 355, 360 (2019). Here, the stat-
ute under which Philadelphia Energy’s claim arises
provides:
(e) Alternative fuel mixture credit.—
(1) In general.—For purposes of this section, the
alternative fuel mixture credit is the product of 50
cents and the number of gallons of alternative fuel
used by the taxpayer in producing any alternative
fuel mixture for sale or use in a trade or business
of the taxpayer.
(2) Alternative fuel mixture.—For purposes of
this section, the term “alternative fuel mixture”
means a mixture of alternative fuel and taxable fuel
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6 PHILADELPHIA ENERGY SOLUTIONS REFINING v. US
(as defined in subparagraph (A), (B), or (C) of sec-
tion 4083(a)(1)) which—
(A) is sold by the taxpayer producing such mixture
to any person for use as fuel, or
(B) is used as a fuel by the taxpayer producing such
mixture.
26 U.S.C. § 6426(e)(1)–(2) (emphasis added in italics). Our
task is to determine whether or not a mixture of butane
and gasoline is “a mixture of alternative fuel and taxable
fuel.”
As an initial matter, there is no dispute that gasoline
is a taxable fuel. See, e.g., Appellant’s Br. at 2. Congress
expressly defined “taxable fuel” in § 6426(e) by cross-refer-
encing the definition provided for that term in § 4083 (i.e.,
the section providing definitions for the taxable fuel excise
tax of § 4081). Section 4083(a)(1) states that “[t]he term
‘taxable fuel’ means—(A) gasoline . . . .” Id. § 4083(a)(1)(A).
There is similarly no dispute that, under that same def-
inition, butane is a taxable fuel. Oral Arg. at 2:55–3:16,
https://oralarguments.cafc.uscourts.gov/default.aspx?fl=22
-1834_11072023.mp3 (counsel for Philadelphia Energy
agreeing that butane is a taxable fuel). That is because
§ 4083(a)(2)(B) provides that, “to the extent prescribed in
regulations,” the term gasoline—a taxable fuel—includes
“any gasoline blend stock.” Although § 4083 does not de-
fine “gasoline blend stock,” its implementing regulations
do:
(c) Blended taxable fuel, diesel fuel, and gas-
oline blendstocks; definitions—
* * *
(3) Gasoline blendstocks—
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PHILADELPHIA ENERGY SOLUTIONS REFINING v. US 7
(i) In general. Except as provided in paragraph
(c)(3)(ii) of this section, gasoline blendstocks
means—
(A) Alkylate;
(B) Butane;
(C) Butene; . . . .
26 C.F.R. § 48.4081-1(c)(3)(i) (emphasis added in italics).
Because the language of § 4083—the section explicitly
cross-referenced to provide the meaning “taxable fuel” for
the alternative fuel mixture credit—unambiguously in-
forms us that butane is a “taxable fuel” for purposes of the
fuel excise tax, it is similarly a “taxable fuel” for purposes
of the credit. See U.S. Venture, 2 F.4th at 1038–39.
Having concluded that both gasoline and butane are
“taxable fuels” as defined by § 4083(a)(1), a plain reading
of § 6426(e) suggests that a mixture of butane and gasoline
would not be a “mixture of alternative fuel and taxable
fuel,” as required for the alternative fuel mixture credit,
but rather a mixture of taxable fuel and taxable fuel. Such
a combination then does not appear to qualify for the
sought-after credit. Our analysis, however, does not end
there.
II
Despite conceding that butane is a taxable fuel—at
least for purposes of the excise tax provisions (i.e., §§ 4041,
4081) of the Tax Code—Philadelphia Energy argues that
nothing within the Code precludes it from also being an
“alternative fuel” for purposes of the tax credit provisions.
That is, Philadelphia Energy takes the position that Con-
gress intentionally abandoned the long-recognized dichot-
omy between the taxes on taxable fuels and alternative
fuels when drafting the tax credit provisions of § 6426. See
Appellant’s Br. at 46–48; see also Vitol, 30 F.4th at 260 (El-
rod, J., dissenting) (“All of the majority opinion’s
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8 PHILADELPHIA ENERGY SOLUTIONS REFINING v. US
conclusions hinge on the taxable fuel–alternative fuel di-
chotomy from the excise-tax provisions. But it is not at all
apparent that such a dichotomy exists in the tax credit pro-
visions.”).
Philadelphia Energy supports its argument by looking
to the language of § 6426(d)—providing the alternative fuel
credit—which defines “alternative fuel” to include liquefied
petroleum gas. Because butane is commonly understood to
be a liquefied petroleum gas, Philadelphia Energy argues
that butane must therefore be an alternative fuel for pur-
poses of the alternative fuel mixture credit of § 6426(e). To
better understand this argument, we return to the lan-
guage of the statute.
As we have already discussed, Congress defined “taxa-
ble fuel” for purposes of the alternative fuel mixture credit
by expressly cross-referencing the definition provided for
that term in the corresponding excise tax section of the Tax
Code, i.e., § 4083. Congress did not, however, provide any
similar cross-reference to, for example, § 4041 (i.e., the ex-
cise tax provision for alternative fuels) when defining what
qualified as an “alternative fuel” for purposes of the alter-
native fuel mixture credit. Philadelphia Energy therefore
argues that, without any cross-reference or other explicit
definition, Congress must have intended for the term “al-
ternative fuel” in § 6426(e) to be controlled by the definition
provided for that term in alternative fuel credit provision
of § 6426(d). That section provides:
(d) Alternative fuel credit.—
(1) In general.—For purposes of this section, the
alternative fuel credit is the product of 50 cents and
the number of gallons of an alternative fuel or gas-
oline gallon equivalents of a nonliquid alternative
fuel sold by the taxpayer for use as a fuel in a motor
vehicle or motorboat, sold by the taxpayer for use
as a fuel in aviation, or so used by the taxpayer.
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PHILADELPHIA ENERGY SOLUTIONS REFINING v. US 9
(2) Alternative fuel.—For purposes of this sec-
tion, the term “alternative fuel” means—
(A) liquefied petroleum gas,
(B) P Series Fuels . . . .
26 U.S.C. § 6426(d) (emphases added in italics). Although
§ 6426 does not define “liquefied petroleum gas,” Philadel-
phia Energy argues that, because the plain and ordinary
meaning of that term within the industry includes butane,
then the use of the term “alternative fuel” throughout the
entirety of § 6426 must be read to include butane. See Ap-
pellant’s Br. at 49–50. We disagree.
If we were to read § 6426 in isolation, divorced from the
broader statutory scheme in which it appears, we may be
convinced that butane, as a liquefied petroleum gas, is an
alternative fuel. But “[w]e do not . . . construe statutory
phrases in isolation; we read statutes as a whole.” United
States v. Morton, 467 U.S. 822, 828 (1984); see Home Depot
U.S.A., Inc. v. Jackson, 139 S. Ct. 1743, 1748 (2019) (“It is
a fundamental canon of statutory construction that the
words of a statute must be read in their context and with a
view to their place in the overall statutory scheme.” (cita-
tion omitted)). And contrary to Philadelphia Energy’s as-
sertions that “[c]ourts look to statutory context only after
identifying a provision’s ordinary meaning,” Appellant’s
Br. at 25 (emphasis added), the Supreme Court has long
made clear that “the meaning of statutory language, plain
or not, depends on context.” King v. St. Vincent’s Hosp.,
502 U.S. 215, 221 (1991). We therefore cannot discern the
meaning of “alternative fuel” without consideration of its
place within the statutory context. And that context shows
that butane is not an alternative fuel.
Section 6426 begins by providing that the alternative
fuel credit of § 6426(d)—the subsection from which Phila-
delphia Energy derives its definition of “alternative
fuel”—applies against excise taxes imposed by § 4041.
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10 PHILADELPHIA ENERGY SOLUTIONS REFINING v. US
26 U.S.C. § 6426(a)(2) (“There shall be allowed as a
credit . . . against the tax imposed by section 4041 an
amount equal to the sum of the credits described in subsec-
tion (d).”). Section 4041, in turn, provides that the excise
tax on “alternative fuels” does not apply to any fuel that is
taxable under § 4081. Id. § 4041(a)(2)(A) (“There is hereby
imposed a tax on any liquid (other than . . . any product tax-
able under section 4081 . . . )” (emphasis added)). As we
have already concluded, butane is taxable under § 4081.
Accordingly, because § 4041 expressly disclaims from the
scope of alternative fuels those fuels taxed under § 4081,
butane is not taxed as an alternative fuel under § 4041 and
is therefore ineligible for the alternative fuel credit of
§ 6426(d). In other words, even if we accept Philadelphia
Energy’s argument that butane is, as a general matter, a
liquefied petroleum gas, it cannot be a “liquefied petroleum
gas” for the purposes of the alternative fuel credit of
§ 6426(d).
This matters because Philadelphia Energy asks us to
import the definition of “alternative fuel” from § 6426(d)
into the definition of “alternative fuel” of § 6426(e). But if
that term as used in § 6426(d) does not include butane, it
most naturally follows that that term as used in § 6426(e)
does not either. Taniguchi v. Kan Pac. Saipan, Ltd., 566
U.S. 560, 571 (2012) (“[I]t is a normal rule of statutory con-
struction that identical words used in different parts of the
same act are intended to have the same meaning.” (cleaned
up)); see Atl. Cleaners & Dyers v. United States, 286 U.S.
427, 433 (1932) (“[T]here is a natural presumption that
identical words used in different parts of the same act are
intended to have the same meaning.”).
To be sure, the rule that identical words have the same
meaning within a given statute is not infallible. See Yates
v. United States, 574 U.S. 528, 537–38 (2015) (“We have
several times affirmed that identical language may convey
varying content when used in different statutes, sometimes
even in different provisions of the same statute.” (collecting
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PHILADELPHIA ENERGY SOLUTIONS REFINING v. US 11
cases)). But we see no reason to deviate from this rule here
where Philadelphia Energy’s own argument is premised on
the meaning of “alternative fuel” in § 6426(e) being the
same as that term in § 6426(d). Moreover, Congress explic-
itly conditioned the application of each of the alternative
fuel credit and the alternative fuel mixture credit on the
imposition of the corresponding excise tax, which is con-
sistent with its decades-long practice of defining alterna-
tive fuels, including their “special motor fuel” predecessors,
as mutually exclusive of taxable fuels. See, e.g., Excise Tax
Reduction Act § 2450; Internal Revenue Code of 1954,
§ 4041. Accordingly, we reject Philadelphia Energy’s argu-
ment that the taxable fuel–alternative fuel dichotomy pre-
sent in the excise tax provisions of the Tax Code does not
extend to its tax credit provisions.
For these reasons, we conclude that butane is not an
“alternative fuel” for purposes of § 6426.
CONCLUSION
We have considered Philadelphia Energy’s remaining
arguments and find them unpersuasive. Because butane
is a “taxable fuel,” it cannot be an “alternative fuel.” Ac-
cordingly, we hold that Philadelphia Energy’s mixtures of
butane and gasoline do not qualify for the alternative fuel
mixture credit of 26 U.S.C. § 6426(e) and affirm the Claims
Court’s judgment in favor of the government.
AFFIRMED