Opinion for the Court filed by Circuit Judge GRIFFITH.
This appeal involves a challenge by Orion Reserves Limited Partnership (Orion)
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to a decision of the Department of the Interior (Interior) invalidating 156 oil shale mining claims on federal land. The district court concluded that Interior’s decision was arbitrary and capricious. We reach the opposite conclusion, which is compelled by the Supreme Court’s holding in
Hickel v. Oil Shale Corp.,
I.
A.
To encourage mining in the western United States, Congress enacted the General Mining Law of 1872 (Mining Law), 30 U.S.C. §§ 22-54 (2000), declaring valuable mineral deposits in federal lands “open to exploration and purchase,” id. § 22. The Mining Law provides that citizens may stake, or “locate,” claims to extract minerals without prior government permission and without paying royalties to the United States. Id. § 26. Claimants may also apply for purchase of a deed, or “patent,” conveying full legal title to the land on which their claims are located. Id. § 29.
Even without a patent, claimants can maintain their mining rights indefinitely so long as they comply with federal, state, and local requirements.
Id.
§§ 26, 28. Among these obligations is a duty to perform annual assessment work. The Mining Law requires that “until a patent has been issued therefor, not less than $100 worth of labor shall be performed or improvements made during each year.”
Id.
§ 28. When a claimant fails to perform this annual assessment work, his claim is “open[ed] to relocation ... as if no location of the [mineral deposit] had ever been made.”
Id.
In other words, if a claimant does not complete the required annual labor or improvements, he will lose his rights in the land to a competing claimant who does. If, however, a claimant who has failed to perform assessment work later resumes work before anyone else has staked a competing claim, his original claim remains intact under a statutory exception known as the “resumption provision.”
Id.
After passage of the Mining Law, Interior promulgated regulations stating that failure to perform required annual assessment work would “subject a claim to relocation” unless the claimant “resumed work after such failure and before relocation.”
Nature and Extent of Mining Claims,
The Mineral Leasing Act of 1920 (Leasing Act), 30 U.S.C. §§ 181-287, authorized Interior to take a more active role in regulating mining on federal lands. Replacing the system of location and patent for oil shale (and several other minerals), the Leasing Act requires new claimants to lease mined land from the Secretary of the Interior and to pay the federal government annual rental fees and royalties to obtain “the privilege of mining, extracting and disposing of’ valuable minerals.
Id.
§ 241. Of relevance here, claims made under the Mining Law’s system of location and patent were preserved under a “savings clause,” provided those claims were “thereafter maintained in compliance with the laws under which initiated.”
Id.
§ 193. Interior subsequently promulgated revised regulations with a preface noting that regulations associated with the Mining Law no longer apply to minerals, like oil shale, listed in the Leasing Act, “except as to valid claims” existing at the enactment of the Leasing Act “and thereafter duly maintained pursuant to the law under which located.”
Nature and Extent of Mining Claims,
*700 B.
This case involves Orion’s attempt to patent 156 oil shale mining claims in Uintah County, Utah that its original predecessor-in-interest located between 1917 and 1919 under the Mining Law. It was not until 1988, however, that another of Orion’s predecessors filed patent applications for the claims. In the course of reviewing these applications, the Bureau of Land Management (BLM), a division of Interior, challenged two of Orion’s claims, alleging they were invalid because, among other things, Orion’s predecessors had failed to perform annual assessment work for significant periods of time. The parties agreed to put the matter on hold until Interior finished processing Orion’s other patent applications. The BLM continued its investigation of Orion’s claims and discovered a substantial number of years between 1920 and 1970 in which no affidavits, required annually by state law as a record that assessment work was completed, were filed. Although work records differ for each of the 156 claims, with lapses apparently ranging from 18 to 50 years, it was not until 1970 that Orion’s predecessors consistently performed at least $100 worth of assessment work each year and made the requisite filings. On this basis, the BLM declared Orion’s 156 oil shale claims void. Crippled Horse Invs., L.P., 3833 (UT932-OA) UMC65858 (Bureau Land Mgmt. Sept. 2, 1999) (Crippled Horse I).
Orion appealed the BLM’s decision to the Interior Board of Land Appeals (IBLA). 1 Orion did not dispute the missing assessment work records, but argued that it had nevertheless preserved its claims under longstanding judicial and departmental interpretations of federal law, requiring only that Orion resume annual work at some time, which it had done. The IBLA rejected Orion’s argument and concluded that Supreme Court precedent requires that claimants “substantially satisfy” the Mining Law’s annual assessment work obligation in order to maintain claims under the Leasing Act’s savings clause. Crippled Horse Invs., L.P., 161 I.B.L.A. 264, 273-74 (2004) (Crippled Horse II). Orion’s ultimate resumption of work in 1970 could not revive claims forfeited by its decades-long failure to perform the required annual assessment labor or improvements. Id. at 277. Orion’s failure to file work affidavits for numerous years made out a prima facie case that the work was not performed in those years. Id. at 274-75. Because Orion did not proffer evidence that assessment work was in fact done in years for which no affidavits were filed, the IBLA held that its claims were invalid. Id. at 277.
Orion brought suit in the United States District Court for the District of Columbia challenging the IBLA decision under the Administrative Procedure Act. The district court bifurcated the case, addressing first the merits of the IBLA decision and postponing until later Orion’s separate and contingent claim that Interior failed to process its patent applications in a timely fashion. On March 31, 2006, the court granted Orion’s motion for summary judgment, reasoning that Orion and its predecessors-in-interest were entitled to rely on the resumption exception to maintain their claims because Interior’s regulations allowed for such a resumption privilege when Orion resumed annual assessment work in 1970.
Orion Reserves Ltd. P’ship v. Norton,
No. 04-0791, slip op. at 8-12,
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On June 28, 2007, the district court took up the question whether Interior unreasonably delayed action on Orion’s patent applications.
Orion Reserves Ltd. P’ship v. Kempthorne,
Interior filed a timely notice of appeal and challenges the district court’s conclusion that Orion’s repeated and extended failure to perform annual assessment work did not forfeit its oil shale claims. Orion cross-appeals, arguing that Interior unreasonably delayed processing its patent applications. Orion has also lodged a “conditional cross-appeal” asking this court to consider several alternative grounds for affirmance in the event we conclude that the district court’s decision on the merits was in error.
See Sea-Land Serv., Inc. v. Dep’t of Transp.,
We have jurisdiction under 28 U.S.C. § 1291 and review the summary judgment decision de novo.
See StoltNielsen Transp. Group Ltd. v. United States,
II.
The IBLA’s determination that Orion had forfeited its oil shale mining claims, and the district court’s conclusion that it had not, turn on undisputed but different facts. The district court focused on the ultimate resumption of annual assessment work for each of the claims; the IBLA based its decision on the lengthy cessation of required assessment work over the course of several decades. The district court found the IBLA’s decision arbitrary and capricious because Orion’s predecessors resumed annual assessment work in 1970, at a time when Interior’s regulations “allowed for noncompliant claimants to remedy assessment work performance failures by resuming work.” Norton, slip op. at 8. It was not until 1993 that Interi- or removed from its regulations any reference to the resumption exception and announced that a lapse in assessment work “causes the interest of the claimant(s) in the minerals subject to the mining laws to revert back to the public domain.” 43 C.F.R. § 3851.3(b) (1993). The district court concluded that, by effectively disavowing the longstanding resumption exception, Interior’s 1993 regulatory revision was a “change[] to the law” that could only work prospectively and could not *702 reach back to undermine mining claims for which Orion’s predecessors had resumed work in 1970. Norton, slip op. at 11. Interior’s application of this revised regulation to invalidate Orion’s claims was therefore “impermissibly retroactive.” Id. Consistent with Interior’s original regulations, the court suggested that Orion should get the benefit of the Leasing Act’s savings clause, which preserved the legal status quo for claims first made under the Mining Law. See id. at 9-10. According to this analysis, resumption of assessment work prior to any competing claim was sufficient to maintain Orion’s oil shale claims.
The IBLA, by contrast, focused on the long cessation of annual assessment work. In doing so, it applied Mining Law and Leasing Act provisions, as interpreted by the Supreme Court in
Hickel v. Oil Shale Corp.,
In the context of this new government leasing regime, the
Hickel
Court concluded that to preserve a Mining Law claim, a claimant must substantially comply with the assessment work requirement.
See id.
at 56-57,
Hickel’s “substantial compliance” standard governs Orion’s sustained failure to complete the required annual assessment work. Applying this standard, the IBLA properly concluded that Orion’s decades-long lapse in performing assessment work did not substantially satisfy the statutory work requirement, regardless of its ultimate resumption of annual work.
See Crippled Horse II,
161 I.B.L.A. at 277;
see also Exxon Mobil Corp. v. Norton,
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The district court’s contrary conclusion is wrong because it missed the effect of
Hickel.
The court erroneously applied Interior’s original regulations to Orion’s claims even though those regulations are inconsistent with the statutory requirements as explained in Hickel.
3
The authority to issue regulations is not the power to make law, and a regulation contrary to a statute is void.
Manhattan Gen. Equip. Co. v. Comm’r of Internal Revenue,
The district court also mistakenly held that Interior violated principles of retroactivity when it attempted “to invalidate [Orion’s] claims for lapses in assessment work that occurred before either the amended regulation or the
Hickel
decision came into existence.”
Norton,
slip op. at 8. It is true that, as a general rule, regulations may only be applied prospectively, but the IBLA relied on
Hickel
and not on any of Interior’s regulations.
See Crippled Horse II,
161 I.B.L.A. at 273-74. Supreme Court decisions are given retroactive effect absent a clear statement from the Court to the contrary.
See Harper v. Va. Dep’t of Taxation,
III.
As part of its conditional cross-appeal, Orion offers several alternative reasons why we should affirm the district court’s grant of summary judgment. These include three separate arguments that the IBLA decision was arbitrary and capricious or unsupported by substantial evidence.
See
5 U.S.C. § 706(2) (2006). “ ‘The scope of review under the “arbitrary and capricious” standard is narrow and a court is not to substitute its judgment for that of the agency.’ ”
Mount Royal Joint Venture v. Kempthorne,
A.
Rather than contest Interior’s evidence that it failed for many years to perform annual assessment work, Orion argues that its resumption of work in 1970 was sufficient to maintain its oil shale claims, notwithstanding Hickel. But Orion misreads Hickel, which made clear that the Mining Law’s resumption exception — the linchpin of Orion’s argument — did not survive the Leasing Act.
Citing to language from two early Supreme Court cases that applied the maintenance provision of the Leasing Act’s savings clause, Orion argues that the resumption exception remains in force. In
Wilbur v. Krushnic,
As noted above, the
Hickel
Court reexamined the annual assessment work requirement in the context of the new leasing regime, concluding that the Leasing Act “makes the United States the beneficiary of all claims invalid for lack of assessment work.”
Hickel,
[W]e now hold that token assessment work, or assessment work that does not substantially satisfy the requirements of 30 U.S.C. § 28, is not adequate to “maintain” the claims within the meaning of [the savings clause] of the Leasing Act.
Id.
at 57,
The Mining Law’s resumption exception was thus replaced by
Hickel’s
“substantial compliance” test, and Orion’s reliance on prior cases suggesting a resumption right that survived the Leasing Act is misplaced. Although the
Hickel
Court did not explicitly overrule
Krushnic
and
Virginia-Colorado,
it concluded that those cases reflect “a judicial attitude of fair treatment -for claimants who have substantially completed the assessment work required.”
Id.
at 52,
The IBLA was therefore correct to base its decision upon “the quantum of the actual assessment work performed and the length of time the claimant failed to meet the annual assessment work required by the Mining Act,”
Crippled Horse II,
161 I.B.L.A. at 274 (quoting
Cliffs Synjuel,
B.
Orion also contends that the IBLA erred in failing to consider its
intent
to maintain the 156 oil shale claims at issue. We disagree.
Hickel
made a showing of intent irrelevant when a claimant has substantially failed to perform required assessment work.
See
it was open to the Court to conclude in Hickel that Congress had intended to make the assessment work requirement merely an indicium of a claimant’s specific intent to retain a claim. Full compliance with the assessment work requirements would establish conclusively an intent to keep the claim, but less than full compliance would not by force of law operate to deprive the claimant of his claim. Instead, less than full compliance would subject the mine owner to a case-by-case determination of whether he nonetheless intended to keep his claim.
Locke,
Orion’s claims are invalid because its predecessors did not substantially comply with the annual assessment work requirement. Unlike the brief, fourteen-month pause in assessment work that led the
Virginia-Colorado
Court to consider the claimant’s stated intention and preparations to resume work,
C.
Orion also argues that the IBLA improperly inferred from missing annual assessment work affidavits that Orion did not perform required work during those years. But Orion has failed to produce any evidence that assessment work in fact took place in years when no affidavits were filed. In order to maintain its mining rights, a claimant must comply with applicable federal, state, and local requirements.
See
30 U.S.C. § 26. Utah law, to which Orion’s claims are subject because they are located in Utah, requires that a claimowner who has performed assessment work must, within thirty days, file an affidavit stating “that the annual assessment work required to maintain the claim was performed.” Utah Code Ann. § 40-1-6(2)(c) (2008). Although the Utah Supreme Court held that failure to file a required affidavit does not result in loss of a mining claim when there is other compelling evidence that the assessment work had in fact been performed,
Murray Hill Mining & Milling Co. v. Havenor,
It was therefore reasonable for the IBLA to conclude that the absence of affidavits made out “a prima facie case that none were filed because the work was not performed,” Crippled Horse II, 161 I.B.L.A. at 274. This approach is consistent with longstanding department practice. See, e.g., United States v. Haskins, 59 I.B.L.A. 1, 102 (1981) (concluding that a lack of assessment work records “established a prima facie case that the work had not been performed”). That Orion filed affidavits for some years, but not others, strengthens the inference that assessment work was recorded when it was in fact performed.
To be sure, failure to file affidavits does not conclusively demonstrate a failure to conduct assessment work, and the IBLA considered the absence of affidavits to be nothing more than prima facie evidence, shifting the burden to Orion “to produce countervailing evidence of assessment work performed.” Crippled Horse II, 161 *707 I.B.L.A. at 275. Orion had ample opportunity to produce evidence of work, but it failed to do so before the IBLA, in the district court, and on appeal. We determine that the IBLA’s conclusion that Orion did not substantially comply with the assessment work requirement was supported by substantial evidence.
IV.
In its motion for summary judgment, Orion argued that Interior was barred from invalidating its claims by 28 U.S.C. § 2462, which provides that a “proceeding for the enforcement of any civil ... forfeiture, pecuniary or otherwise, shall not be entertained unless commenced within five years from the date when the claim first accrued.... ” The district court correctly concluded that because Orion failed to raise this statute of limitations defense during the administrative proceedings, it had waived this argument.
Norton,
slip op. at 6-7; see
also Salt Lake Cmty. Action Program v. Shalala,
Orion now seeks to excuse its failure to raise this defense before the IBLA by suggesting that the BLM decision was based on Utah (rather than federal) law. In reality, the BLM decision was grounded in federal law. The decision identified relevant provisions of the Mining Law and the Leasing Act, discussed applicable federal regulations, and cited the Supreme Court’s decision in Hickel as the legal basis for Interior’s invalidation of the oil shale claims. See Crippled Horse I, slip op. at 1-2. Orion’s excuse therefore fails, and its statute of limitations argument was forfeited.
V.
Finally, Orion argues that Interi- or’s failure to provide notice and a hearing prior to invalidating its oil shale claims violated Orion’s right to due process. According to Orion, the BLM should have afforded it the opportunity to respond with documentation as part of an administrative contest proceeding, and the IBLA should have held an evidentiary hearing before invalidating Orion’s mining claims. Interi- or argues that it followed longstanding department policy and practice in concluding, with respect to Orion’s claims, that “no contest pursuant to 43 C.F.R. 4.451-1 or hearing pursuant to 43 C.F.R. 4.415 is necessary where the material facts are undisputed.”
Crippled Horse II,
161 I.B.L.A. at 277;
see also Woods Petroleum Co.,
86 I.B.L.A. 46, 55 (1985) (concluding that the department need only grant a hearing “when there are significant factual or legal issues remaining to be decided and the record without a hearing would be insufficient for resolving them” (quoting
Stickelman v. United States,
It is the IBLA’s decision and not the BLM’s initial action that binds the agency and formally extinguished Orion’s mining claims.
See Nat’l Wildlife Fed’n,
145 I.B.L.A. 348, 362 (1998) (noting that the IBLA is “delegated responsibility to
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decide for the Department ‘as fully and finally as might the Secretary’ appeals regarding use and disposition of the public lands and their resources” (quoting 43 C.F.R. § 4.1 (2005)));
see also Pennaco Energy, Inc. v. U.S. Dep’t of Interior,
Orion has also failed to identify any evidence that created a dispute as to material fact requiring resolution through a formal evidentiary hearing. See
KernCo Drilling Co.,
71 I.B.L.A. 53, 56 (1983) (“A hearing is necessary only where there is a material issue of fact requiring resolution through the introduction of testimony and other evidence. In the absence of such an issue, no hearing is required.”).
5
Although Orion advanced arguments about the proper inferences that may be drawn from an absence of work affidavits, it failed to introduce any evidence suggesting that assessment work was actually performed in years when no affidavit was filed. Without a factual conflict, the IBLA had no reason to grant Orion an evidentiary hearing.
See Woods Petroleum,
86 I.B.L.A. at 55 (refusing to grant a hearing when “the dispute did not involve facts, but involve[d] the proper application and interpretation of those facts”);
see also Codd v. Velger,
VI.
For the foregoing reasons, the judgment of the district court is
Reversed.
Notes
. The IBLA is Interior's review authority charged with deciding, on behalf of the Secretary, matters relating to the use and disposition of public lands and their resources. See 43 C.F.R. § 4.1(b)(3).
. The court also held that Orion had waived its argument that the IBLA's decision to invalidate the oil shale claims was barred by the statute of limitations in 28 U.S.C. § 2462 (2000), because it had failed to make this argument to the agency. Norton, slip op. at 6-7.
. In order to make its policies "consistent with the law” as interpreted in Hickel, 37 Fed.Reg. 17,836 (1972), Interior promulgated regulations in 1972 specifying that failure to perform annual assessment work would render a mining claim "subject to cancellation” by the government, 43 C.F.R. § 3851.3(a) (1972). In 1993 Interior further revised its regulations to remove any reference to the resumption exception and to clarify that a lapse in assessment work "causes the interest of the claimants) in the minerals subject to the mining laws to revert back to the public domain.” 43 C.F.R. § 3851.3(b) (1993).
. Indeed, the Court indicated in its remand order that the “substantial compliance” test applied to- claims for which assessment work had lapsed in the, early 1930s, long before the Court’s decision.
See Hickel,
. The IBLA's interpretation of when an evi-dentiary hearing is required is consistent with the regulatory text, 43 C.F.R. § 4.415, and accords with other department determinations of what due process requires in similar circumstances, see, e.g., Taylor Energy Co. Phillips Petroleum, 148 I.B.L.A. 286, 295 (1999) (finding that IBLA appeal proceedings satisfied due process in circumstances when “the record does not reflect sufficient factual issues to warrant a hearing”).
