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Cost to plug an oil or gas well in Wyoming

Reported costs of publicly funded well plugging in Wyoming, 2023 to 2025.

Median cost per well

$5,590

A held-out error 16%

Typical range

$5,051 – $15,448

10th to 90th percentile; held 74% of held-out wells

Wells on file

1,124

480 independent observations, 2023-01 to 2025-10

Mix effect: 85% of the wells on file in Wyoming are gas wells, most of them in Campbell, Johnson and Sheridan counties, and 61% of records are contract averages. The statewide median mainly describes those wells; use the well-type rows below for anything else.

Estimate a well in Wyoming

By well type

Light bar: 10th to 90th percentile. Dark bar: middle half. Tick: median. Only graded well types are drawn.

Well type	Median per well	Typical range (10th–90th pct.)	Grade	Wells	Held-out error
Gas well	$5,520	$5,051 – $8,189	B	960	4%
Injection or disposal well	—	—	Insufficient data	11	—
Oil well	—	—	Insufficient data	153	—

By depth

Depth band	Median per well	Typical range (10th–90th pct.)	Grade	Wells	Held-out error
6,000 ft and deeper	—	—	Insufficient data	17	—
under 1,000 ft	—	—	Insufficient data	24	—

By year plugged

Wells with a reported plugging cost, by year plugged.

Year	Median per well	Typical range (10th–90th pct.)	Grade	Wells	Held-out error
2023	$5,520	$5,051 – $8,047	A	661	8%
2024	$5,915	$5,121 – $11,315	B	369	14%
2025	—	—	Insufficient data	34	—

Cost index for Wyoming

Year	Index (2023 = 100 where 2023 is on file, otherwise first year)	Grade	Wells
2023	100.0	B	661
2024	93.1	B	369
2025	—	Insufficient data	34

Counties with a graded estimate

County	Median per well	Typical range (10th–90th pct.)	Grade	Wells	Held-out error
Campbell	$5,520	$5,051 – $7,722	A	768	6%
Crook	$8,104	$6,767 – $10,048	B	72	13%

Contractors active

Companies awarded federal contracts for well plugging in this state, from USAspending (federal-land wells only): ASRC Consulting & Environmental Services, LLC, Barnum Inc, Brice Solutions, LLC, Continental Industries Field Services, LLC, North Wind Site Services LLC, Welter Consulting, Inc., Wyodak Energy Services, LLC.

Receipts

Every figure on this page is computed from public records you can inspect:

Well-level records for Wyoming in the US Department of the Interior Orphaned Wells Program Office data layer (well identifier, county, type, reported cost, date).
Orphaned Wells Program maps and data, US Department of the Interior.

Costs are as reported by the grant recipient. 39% of the records here are a cost for one well; the rest are contract or lease averages. See limitations.

Data through 2026-06-30. Sample sizes are the wells behind each figure. Grades come from held-out tests, not in-sample fit: A needs 200+ independent cost observations and a held-out error of 25% or less; B needs 60+ and 40% or less. Anything weaker is shown as Insufficient data. How grading works.

Some figures here are withheld because the data is too thin to grade. If you hold actual plugging costs, report a plugging cost. Reports are reviewed before any use.