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Niobrara County, WY oil and gas wells

3,091 wells: 299 active, 1,784 plugged, 13 orphaned, run by 542 operators.

Figures from the Wyoming Oil and Gas Conservation Commission, updated 2026-10-19.

Top operators in Niobrara

OperatorActiveWells here
SUNSHINE VALLEY PETROLEUM4595
JP OIL WYOMING LLC3362
FINLEY RESOURCES INC2946
BREITBURN OPERATING L.P.2838
HADLEY/JACKSON ENERGY LLC2428
USA ENERGY LLC1436
BULLOCK A O1429
M & K OIL COMPANY LLC1419
1876 RESOURCES LLC1119
CENTURY OIL AND GAS LLC10574
MILLENNIUM OIL & GAS LLC1036
NEW HORIZON RESOURCES LLC88
CHIPCORE LLC710
JOEMAR WYOMING OPERATING LLC710
ARENA RESOURCES LLC633
KREJCI HARRY L68
MURPHY SHELDON L & LORETTA59
SEEDY DRAW LLC55
REMUDA ENERGY DEVELOPMENT LLC436
ANTELOPE ENERGY COMPANY LLC45
O'BRIEN ENERGY RESOURCES CORPORATION224
ANT HILLS PRODUCTION213
DARRAH JOHN JAY JR213
ELLWOOD EXPLORATION LLC211
PROVIDENCE OIL DEVELOPMENT LLC24

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
FINLEY STATE 1-36 49-027-20968Active OilELLWOOD EXPLORATION LLC
FLAT TOP HILL 3567-11-23-2 NXH 49-027-27008Active Oil1876 RESOURCES LLC
FLAT TOP HILL 3467-14-2-1 TXH 49-027-27009Active Oil1876 RESOURCES LLC
FLAT TOP HILL 3467-27-15-3NXH 49-027-27642Active Oil1876 RESOURCES LLC
FLAT TOP HILL 3467-27-15-4NXH 49-027-27643Active Oil1876 RESOURCES LLC
FRANCIS FEDERAL 23-11 49-027-26793Active OilARENA RESOURCES LLC
FUNNY ROCK W-62305 12-34 49-027-20767Active OilKREJCI HARRY L
Fiddleback 40-66-34-27 30MDH 49-027-27610Permitted OilCENTURY OIL AND GAS LLC
Fiddleback 40-66-34-28 31MDH 49-027-27611Permitted OilCENTURY OIL AND GAS LLC
Flat Top Hill 3467-27-34-3NXH 49-027-26901Active Oil1876 RESOURCES LLC
Flat Top Hill 3467-27-34-4NXH 49-027-26931Active Oil1876 RESOURCES LLC
Flat Top Hill 3467-27-34-2NXH 49-027-27644Active Oil1876 RESOURCES LLC
Flat Top Hill 3467-27-34-1NXH 49-027-27645Permitted Oil1876 RESOURCES LLC
Flat Top Hill 3467-27-15-2NXH 49-027-27646Active Oil1876 RESOURCES LLC
Flat Top Hill 3467-27-15-1NXH 49-027-27647Active Oil1876 RESOURCES LLC
Francis 1H 49-027-27626Permitted OilARENA RESOURCES LLC
GASKILL 14-13 49-027-20741Active OilSEEDY DRAW LLC
GASKILL 27-34 49-027-20828Active OilSUNSHINE VALLEY PETROLEUM
GASKILL 34-43 49-027-20843Active OilSUNSHINE VALLEY PETROLEUM
GASKILL 1 49-027-26603Temporarily abandoned OilSUNSHINE VALLEY PETROLEUM
GASKILL FED 13 49-027-20742Active OilSUNSHINE VALLEY PETROLEUM
GEODE STATE 1 49-027-21000Active OilANTELOPE ENERGY COMPANY LLC
GREASEWOOD 9 49-027-26598Active OilO'BRIEN ENERGY RESOURCES CORPORATION
GREASEWOOD FEDERAL 3 49-027-26581Active OilO'BRIEN ENERGY RESOURCES CORPORATION
GREASEWOOD FEDERAL 22-6 49-027-26831Active OilBREITBURN OPERATING L.P.
GREASEWOOD FEDERAL 33-35 49-027-26832Active OilBREITBURN OPERATING L.P.
GREGORY 27-27 49-027-27624Active OilHADLEY/JACKSON ENERGY LLC
Goldeneye 22-34-35-67-1H 49-027-27605Permitted OilTRANSWORLD SYSTEMS PETROLEUM INC
Gopher #2H 49-027-27014Permitted OilARENA RESOURCES LLC
HANSON 14 49-027-20757Active OilSUNSHINE VALLEY PETROLEUM
HANSON FEDERAL 1 49-027-20934Shut in OilSUNSHINE VALLEY PETROLEUM
HANSON FEE 1-12H 49-027-27007Active OilARENA RESOURCES LLC
HANSON LIVESTOCK 13-29 49-027-27017Shut in OilPROVIDENCE OIL DEVELOPMENT LLC
HAT CREEK UNIT 2 49-027-20145Orphaned OilINTERLINE RESOURCES CORP
HEINE 22-33 49-027-27606Shut in OilREMUDA ENERGY DEVELOPMENT LLC
HENRY FED 14-4 49-027-27600Drilling OilDARRAH JOHN JAY JR
HOOLIGAN DRAW 1-AH 49-027-26596Active OilCENTURY OIL AND GAS LLC
HOORAH 4-27 49-027-26736Active OilJOEMAR WYOMING OPERATING LLC
HUNGARIAN PARTRIDGE 3-14-38-67H 49-027-21005Active OilSUNSHINE VALLEY PETROLEUM
IAN FEDERAL 9-8-40-64 49-027-26929Shut in OilSUNSHINE VALLEY PETROLEUM
JAMES ZERBST 2 49-027-20310Active OilSUNSHINE VALLEY PETROLEUM
JASPER 32-4H 49-027-26943Active OilCENTURY OIL AND GAS LLC
JD WASSERBURGER 1 49-027-26771Active DisposalDARRAH JOHN JAY JR
JOSS 34-67-35-4H 49-027-26900Active Oil1876 RESOURCES LLC
JOSS FEDERAL 11-10A 49-027-26750Active GasREMUDA ENERGY DEVELOPMENT LLC
JW 1 49-027-26754Shut in OilPGC LLC
Jasper 40-66-32-4 32MDH 49-027-27612Permitted OilCENTURY OIL AND GAS LLC
Jasper 40-66-32-21 31MDH 49-027-27613Permitted OilCENTURY OIL AND GAS LLC
KAYE TEAPOT UNIT 23J-1H 49-027-26789Active OilFINLEY RESOURCES INC
KK 2 49-027-26730Shut in OilPGC LLC
KREJCI FEDERAL 3-29H 49-027-26660Shut in OilTHREE FORKS RESOURCES LLC
KTU 22 49-027-20053Active OilFINLEY RESOURCES INC
KTU 10N 49-027-20107Active InjectionFINLEY RESOURCES INC
KTU 15F 49-027-20110Active OilFINLEY RESOURCES INC
KTU 15N 49-027-20113Active InjectionFINLEY RESOURCES INC
KTU 23N 49-027-20116Active OilFINLEY RESOURCES INC
KTU 15P 49-027-20117Active OilFINLEY RESOURCES INC
KTU 26 49-027-20126Active OilFINLEY RESOURCES INC
KTU 10F 49-027-20147Active OilFINLEY RESOURCES INC
KTU 27 49-027-20152Active OilFINLEY RESOURCES INC
KTU 27P 49-027-20158Active OilFINLEY RESOURCES INC
KTU 14N 49-027-20160Active OilFINLEY RESOURCES INC
KTU 36F 49-027-20165Active OilFINLEY RESOURCES INC
KTU 14F 49-027-20172Active OilFINLEY RESOURCES INC
KTU 23F 49-027-20174Shut in OilFINLEY RESOURCES INC
KTU 22F 49-027-20182Active OilFINLEY RESOURCES INC
KTU 23 49-027-20243Shut in OilFINLEY RESOURCES INC
KTU 1C 49-027-20314Active OilFINLEY RESOURCES INC
KTU 25E 49-027-20489Active OilFINLEY RESOURCES INC
KTU 3N 49-027-20499Active InjectionFINLEY RESOURCES INC
KTU 24F 49-027-20555Active OilFINLEY RESOURCES INC
KTU 24N 49-027-20629Active OilFINLEY RESOURCES INC
KTU 25P 49-027-20630Active OilFINLEY RESOURCES INC
KTU 10 49-027-20637Active InjectionFINLEY RESOURCES INC
KTU 15B 49-027-20655Active OilFINLEY RESOURCES INC
KTU 35C 49-027-20691Active OilFINLEY RESOURCES INC
KTU 15J 49-027-20704Active InjectionFINLEY RESOURCES INC
KTU 23D 49-027-20778Active OilFINLEY RESOURCES INC
KTU 24P 49-027-20794Active OilFINLEY RESOURCES INC
KTU 25 49-027-20806Shut in OilFINLEY RESOURCES INC
KTU 15HX 49-027-26608Active InjectionFINLEY RESOURCES INC
KTU 11N 49-027-26609Active InjectionFINLEY RESOURCES INC
LAMB A 19 49-027-05359Active OilJP OIL WYOMING LLC
LANCE CREEK EAST UN 6 49-027-05677Shut in OilUSA ENERGY LLC
LANCE CREEK EAST UN 10 49-027-05680Temporarily abandoned OilUSA ENERGY LLC
LANCE CREEK ROYALTY 1 49-027-05143Shut in GasMILLENNIUM OIL & GAS LLC
LANCE CREEK ROYALTY A-3 49-027-05153Shut in GasMILLENNIUM OIL & GAS LLC
LANCE CREEK UNIT-A 5 49-027-05687Shut in OilDAMSON OIL CORPORATION
LEIMSER 1 49-027-05735Active OilANT HILLS PRODUCTION
LEIMSER 33-5 49-027-20378Active OilANT HILLS PRODUCTION
LEO 16 6 49-027-60043Temporarily abandoned OilMILLENNIUM OIL & GAS LLC
LEO OPC 16 4 49-027-05454Active OilMILLENNIUM OIL & GAS LLC
LEO OPC 16 7 49-027-05486Shut in OilMILLENNIUM OIL & GAS LLC
LIGHTNING CREEK UNIT 21 49-027-05095Active OilBULLOCK A O
LIGHTNING CREEK UNIT 22 49-027-05096Active OilBULLOCK A O
LIGHTNING CREEK UNIT 18 49-027-05102Active OilBULLOCK A O
LIGHTNING CREEK UNIT 20 49-027-05103Active OilBULLOCK A O
LIGHTNING CREEK UNIT 12 49-027-05128Active OilBULLOCK A O
LIGHTNING CREEK UNIT 14 49-027-05142Active OilMILLENNIUM OIL & GAS LLC
LIGHTNING CREEK UNIT 3-36 49-027-20217Shut in OilMILLENNIUM OIL & GAS LLC

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