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COUNTIES · WYOMING

Natrona County, Wyoming

Natrona County has 2,345 active wells under 49 operators, of 9,618 drilled.

Its wells reported 3,946,748 bbl of oil, 5,349,002 Mcf of gas, and 98,017,101 bbl of produced water in the twelve months through August 2026; oil is down 3% on the twelve months before.

1,634,775 bbl of water were injected in the twelve months through August 2026, across 627 active injection and disposal wells.

Contango Resources LLC operates the wells behind 71% of that oil.

2,345
active wells · 49 operators
3.9M
bbl oil, 12 months through Aug 2026 · −3%
5.3M
Mcf gas, same 12 months · −9%
0
APDs approved in 12 months · 0 wells spudded

All 10,323 wells on file in Natrona County, searchable →

Reported production by month

Summed from the county's wells, through Aug 2026. A month still being filed is left out, not drawn low.

12 months through Aug 2026 3,946,748 · prior 12 4,075,769(-3%)

0200K400K600K2017201820192020202120222023202420252026

Natrona County: Oil by month.

Wells spudded, by year

HorizontalVertical and directional

050100150200220042006200820102012201420162018202020222024

Operators by oil

BBL · 12 MONTHS THROUGH AUG 2026

  1. Contango Resources LLC1,001 active wells

    2.8M bbl

  2. Denbury Onshore LLC24 active wells

    483,397 bbl

  3. Citation Oil & Gas Corporation75 active wells

    191,555 bbl

  4. Arnell Oil Company36 active wells

    98,026 bbl

  5. Green Reserve Energy Holdings LLC563 active wells

    88,371 bbl

  6. Spellbound Energy LLC28 active wells

    62,911 bbl

  7. Black Bear Oil Corporation62 active wells

    60,505 bbl

  8. Southwestern Production Corporation10 active wells

    18,621 bbl

What the wells each operator runs today reported, whoever operated them at the time.

Operators

OperatorActive wellsAPDs, 12 moOil, 12 moGas, 12 moWater, 12 mo
Contango Resources LLC wells1,00102.8M37,44740.5M
Denbury Onshore LLC wells240483,39703.1M
Citation Oil & Gas Corporation wells750191,55580,50637.2M
Arnell Oil Company wells36098,0260405,630
Green Reserve Energy Holdings LLC wells563088,37111,4873.3M
Spellbound Energy LLC wells28062,9110504,600
Black Bear Oil Corporation wells62060,50556,3933.3M
Southwestern Production Corporation wells10018,6219,30811,720
Beren Corporation wells12017,47502.0M
Hilcorp Energy Company wells207015,5213.1M46,678
Oil Mountain Energy Inc wells8014,3050964,900
Everest Oil & Gas LLC wells6010,79402.2M
P O & G Operating LLC wells2010,75300
Wesco Operating Inc wells13010,7380512,368
Aethon Energy Operating LLC wells16010,453510,968557,468
Adamas Energy LLC wells2109,2771.4M1.6M
Black Gold Services Inc wells1908,288105,725
Cloud Peak Operating LLC wells606,60801.5M
Nucor Oil & Gas Inc wells703,4462,9531,141
M2S Oil LLC wells503,3530349,560

Fields

Every field with a completion here →
FieldActive wellsOil, 12 moGas, 12 mo
Salt Creek1,0322.8M1,668
Grieve24483,3970
Poison Spider64160,9370
Notches19100,1470
Casper Creek South5291,0270
Teapot Naval Reserve56088,26111,487
Sage Spring Creek3738,70423,156
Salt Creek East1523,0010
Cole Creek918,6119,303
Frenchie Draw3617,5171.9M
Emerald1217,4750
Oil Mountain814,3050
Waltman13011,7882.8M
Lost Dome610,7940
Burke Ranch East1510,7380

Latest APDs

All of them →
ApprovedWellOperatorProposed formationTarget depthNow
Aug 28, 2024NPR 3 64-S-1049-025-10334Green Reserve Energy Holdings LLCShannon406 ftSpuddedApr 7, 1977
May 20, 2024SCLOU 18wc2sw2449-025-08527Contango Resources LLCWall Creek-21,475 ftSpuddedJul 17, 2024
May 16, 2024NPR 3 74-S-1049-025-10570Green Reserve Energy Holdings LLCShannon440 ftSpuddedFeb 11, 1978
May 16, 2024NPR 3 44-SX-1049-025-10747Green Reserve Energy Holdings LLCShannon455 ftSpuddedNov 13, 1978
Apr 30, 2024SCLOU 36wc2se2349-025-08414Contango Resources LLCWall Creek-21,490 ftSpuddedJun 14, 2024
Apr 30, 2024SCLOU 31wc2nw2449-025-08632Contango Resources LLCWall Creek-21,553 ftSpuddedJul 17, 2024
Apr 30, 2024Sclou 25WC2NE2349-025-08656Contango Resources LLCWall Creek-21,580 ftSpuddedJun 22, 1964
Apr 9, 2024Waltman 11749-025-24343Hilcorp Energy CompanyFort Union9,000 ftSpuddedAug 12, 2024
Apr 9, 2024Waltman 11649-025-24344Hilcorp Energy CompanyFort Union5,000 ftSpuddedAug 12, 2024
Mar 12, 2024Sclou 29AXWC2SW2449-025-08440Contango Resources LLCWall Creek-21,500 ftSpuddedMay 23, 2024

Largest wells

WellOperatorCountyFieldOil, 12 moGas, 12 moWater, 12 mo
Grieve Unit 20 49-025-05401Denbury Onshore LLCNatronaGrieve110,1820719,941
Grieve Unit 9 49-025-05427Denbury Onshore LLCNatronaGrieve79,2640234,411
Grieve 55 49-025-24054Denbury Onshore LLCNatronaGrieve74,0460415,382
W-015815 Grieve Unit 13 49-025-05410Denbury Onshore LLCNatronaGrieve54,4930277,521
Grieve 39A 49-025-23658Denbury Onshore LLCNatronaGrieve51,3700293,844
Light Oil Unit 30WC2 NE23 49-025-22346Contango Resources LLCNatronaSalt Creek33,1950118,957
Federal 1H 49-025-24341Arnell Oil CompanyNatronaPoison Spider33,1180108,547
Sclou 01WC2SE23 49-025-08591Contango Resources LLCNatronaSalt Creek31,1270228,034
Light Oil Unit 5 WC1 SW06 49-025-23640Contango Resources LLCNatronaSalt Creek29,791045,582
Light Oil Unit 19TP SW26 49-025-20451Contango Resources LLCNatronaSalt Creek29,72103,458,098

Disposal and injection wells

BBL OF WATER INJECTED · 12 MONTHS THROUGH AUG 2026

WellOperatorCountyFieldInjected, 12 mo
Gun Barrel Unit 22-23 WDW 49-025-23337Aethon Energy Operating LLCNatronaFrenchie Draw1,055,493
Grieve Unit 62 49-025-23857Denbury Onshore LLCNatronaGrieve494,655
Morton 1-22-1 49-025-05425Denbury Onshore LLCNatronaGrieve27,556
South Branch 1 49-025-22861Hilcorp Energy CompanyNatronaWaltman13,297
Swdw 2-5 49-025-23007Hilcorp Energy CompanyNatronaWaltman13,297
East Bullfrog Fed 2-6 49-025-23251Hilcorp Energy CompanyNatronaWaltman13,297
Cooper Res Unit 9 49-025-22787Hilcorp Energy CompanyNatronaCooper Reservoir8,100
Waltman 41 49-025-22973Hilcorp Energy CompanyNatronaWaltman7,277
Cooper Res Unit 1 49-025-05985Hilcorp Energy CompanyNatronaCooper Reservoir1,803

Questions about Natrona County

How many drilling permits were issued in Natrona County in the last 12 months?

0 APDs were approved in Natrona County in the last 12 months. The most recent was approved Aug 28, 2024. 9,655 are on file since 1901.

Every Natrona County APD →

Which operator produces the most oil in Natrona County?

Wells operated by Contango Resources LLC in Natrona County reported 2.8 million barrels of oil in the 12 months through August 2026, 71% of the county's total, followed by Denbury Onshore LLC (483,397 bbl) and Citation Oil & Gas Corporation (191,555 bbl). It operates 1,001 active wells here.

Operators in Natrona County →

How many oil and gas wells are in Natrona County?

10,323 wells are on file in Natrona County, including 2,345 active, 6,061 plugged, and 13 permitted and not yet drilled. 236 are horizontal. The active wells are under 49 operators.

Every well in Natrona County →

How much oil and gas does Natrona County produce?

Wells in Natrona County reported 3.9 million barrels of oil and 5.3 million Mcf of gas on form 2 in the 12 months through August 2026; oil is down 3% from 4.1 million in the 12 months before.

Production by month in Natrona County →

How much water is injected in Natrona County?

1.6 million barrels of water were injected in Natrona County in the 12 months through August 2026, up 47% from 1.1 million in the 12 months before, across 627 active injection and disposal wells.

Injection by month in Natrona County →

What are the largest oil fields in Natrona County?

Counting oil reported in the 12 months through August 2026, the largest is Salt Creek, with 2.8 million barrels. Second is Grieve, with 483,397 barrels. Third is Poison Spider, with 160,937 barrels.

Every field in Natrona County →

About this data

Wyoming Oil and Gas Conservation Commission. A well's county is the county code in its API number. Volumes are what operators filed on form 2 for the county's wells, by month, through Aug 2026 for production and Aug 2026 for injection. Nothing is estimated.

Developers: this page as JSON is GET /v1/data/counties/wy/natrona, documented in the API reference.