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What operators report for plugging liabilities

Oil and gas companies book an asset retirement obligation for the future cost of plugging and restoring. These are the largest in 2025, from their annual filings with the SEC.

CompanyObligation bookedChange on 2024Settled in 2025
Devon Energy Corp/De$906,000,000+12%$65,000,000
Diversified Energy Company$888,698,000+42%$23,015,000
W&T Offshore, Inc.$561,851,000+2%$36,765,000
Crescent Energy Company$402,601,000-17%$264,764,000
Kosmos Energy Ltd.$337,497,000-17%$3,803,000
Mach Natural Resources LP$261,856,000+157%$657,000
Bkv Corporation$233,339,000+16%$1,873,000
Permian Resources Corporation$189,350,000+18%$5,974,000
Magnolia Oil & Gas Corp$186,955,000+14%$5,236,000
Range Resources Corporation$148,952,000+11%$865,000
Gran Tierra Energy Inc.$122,774,000+11%$6,385,000
Sable Offshore Corp.$113,181,000+14%—
Sandridge Energy, Inc.$72,391,000+6%$1,377,000
Riley Exploration Permian, Inc.$63,432,000+80%$2,591,000
Nacco Industries, Inc.$47,701,000-4%$6,760,000
Acacia Research Corporation$34,175,000+5%$179,000
Empire Petroleum Corporation$31,816,000+5%$541,000
Black Stone Minerals, L.P.$24,265,000+14%$774,000
Evolution Petroleum Corp$22,440,000+11%$230,000
Battalion Oil Corp$20,837,000+9%—
HighPeak Energy, Inc.$15,944,000+8%—
PrimeEnergy Resources Corporation$14,337,000+3%$654,000
Vitesse Energy, Inc.$14,022,000+45%—
Granite Ridge Resources, Inc.$12,720,000+16%$213,000
New Era Energy & Digital, Inc.$12,319,132+460%—
Pedevco Corp.$8,811,000+38%$505,000
Big Sky Industrial Inc.$8,006,000-43%$5,571,000
Epsilon Energy Ltd.$7,437,960+104%$1,600
Royale Energy, Inc.$5,077,852-0%$78,839
AleAnna, Inc.$4,507,921——
Prairie Operating Co.$4,019,000+1670%—
Ridgewood Energy Y Fund, LLC$3,740,000+3%$337,000
Ridgewood Energy O Fund, LLC$3,238,000-0%—
Reserve Petroleum Co$2,509,626+6%$34,449
Energy 11, L.P.$2,234,607+2%—
Ridgewood Energy A-1 Fund, LLC$1,792,000+3%—
Ridgewood Energy W Fund, LLC$1,773,000-2%$55,000
Ridgewood Energy U Fund, LLC$1,741,000+7%$260,000
Ridgewood Energy S Fund, LLC$1,287,000-0%—
Ridgewood Energy Q Fund, LLC$1,280,000+0%—

Company pages

Source: SEC EDGAR structured financial data (US government records). Filers that report oil and gas property, calendar-year basis; 48 companies in 2025. The obligation covers all asset types and is the company's own discounted estimate, not a plugging price, and filings rarely state how many wells were plugged, so no cost per well is shown. These figures are a separate series and are not part of the Plugging Cost Index or any state figure. See asset retirement obligations.