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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
CHARLES FED 15-33 1 49-027-20965Active DisposalCHIPCORE LLC
CHEROKEE 31-24 49-027-20728Active OilSUNSHINE VALLEY PETROLEUM
CHESTER 8-1H 49-027-26873Active OilCENTURY OIL AND GAS LLC
CHEYENNE 1 49-027-20321Shut in OilSUNSHINE VALLEY PETROLEUM
CHEYENNE RIVER #1H 49-027-27607Active OilARENA RESOURCES LLC
CHIPMUNK 2H 49-027-27636Permitted OilARENA RESOURCES LLC
CHRISTENSEN 15-1H 49-027-26966Active OilM & K OIL COMPANY LLC
CHRISTENSEN 15-2H 49-027-26982Active OilM & K OIL COMPANY LLC
CHRISTENSEN FED 34-23 49-027-20861Shut in OilM & K OIL COMPANY LLC
CHUTE FEDERAL 14-21-4H 49-027-26808Active Oil1876 RESOURCES LLC
CONVERSE SHEEP 4 49-027-05422Shut in OilJP OIL WYOMING LLC
CONVERSE SHEEP 11 49-027-05429Active OilJP OIL WYOMING LLC
CONVERSE SHEEP 5 49-027-05444Shut in OilJP OIL WYOMING LLC
CONVERSE SHEEP 8 49-027-05459Active GasJP OIL WYOMING LLC
CONVERSE SHEEP 9 49-027-05461Active OilJP OIL WYOMING LLC
CONVERSE SHEEP 7 49-027-07110Active OilJP OIL WYOMING LLC
CONVERSE SHEEP 13 49-027-20291Shut in DisposalJP OIL WYOMING LLC
CONVERSE SHEEP FEE 12 49-027-20279Active OilJP OIL WYOMING LLC
CONVERSE SHEEP UNIT 6 49-027-05446Temporarily abandoned OilJP OIL WYOMING LLC
Cheyenne River #2H 49-027-27608Permitted OilARENA RESOURCES LLC
Chinook 11TXH 49-027-27655Permitted Oil1876 RESOURCES LLC
Chinook 21NXH 49-027-27656Permitted Oil1876 RESOURCES LLC
Chinook 22NXH 49-027-27657Permitted Oil1876 RESOURCES LLC
Chinook 23NXH 49-027-27658Permitted Oil1876 RESOURCES LLC
Chinook 24NXH 49-027-27659Permitted Oil1876 RESOURCES LLC
Chinook 12TXH 49-027-27660Permitted Oil1876 RESOURCES LLC
DELAHOYD GOVT W-942 3 49-027-05767Shut in OilANT HILLS PRODUCTION
DELAHOYD GOVT W-942 2 49-027-07154Shut in OilANT HILLS PRODUCTION
DIELMAN A 3 49-027-05261Shut in OilJP OIL WYOMING LLC
DIXON 1-20 49-027-20439Active OilM & K OIL COMPANY LLC
DIXON 2-20 49-027-20583Active OilM & K OIL COMPANY LLC
DIXON 2-24 49-027-20734Shut in OilBOGGY CREEK PRODUCTION
DIXON 3-19 49-027-20831Active OilM & K OIL COMPANY LLC
DJ 1 49-027-26701Shut in OilPGC LLC
DOWNING 3 49-027-05118Shut in OilBULLOCK A O
DOWNING 7 49-027-05120Active OilBULLOCK A O
DOWNING FEE WELL # 10 49-027-05107Active OilBULLOCK A O
DOWNING FEE WELL # 11 49-027-07102Active OilBULLOCK A O
DUTCH JANE 1H 49-027-27637Permitted OilARENA RESOURCES LLC
Dutch Joe #2H 49-027-27619Permitted OilARENA RESOURCES LLC
Dutch Joe #1H 49-027-27620Permitted OilARENA RESOURCES LLC
E LAMB A 16 49-027-05401Temporarily abandoned OilJP OIL WYOMING LLC
E LANCE CREEK UNIT-B 16 49-027-05645Active OilUSA ENERGY LLC
E LANCE CREEK UNIT-B 12 49-027-05652Active OilUSA ENERGY LLC
E. LAMB A 6 49-027-05447Shut in OilJP OIL WYOMING LLC
EAST ANT HILLS 1 49-027-26769Active OilNEW HORIZON RESOURCES LLC
EAST ANT HILLS 2 49-027-26809Shut in OilO'BRIEN ENERGY RESOURCES CORPORATION
EAST LANCE CREEK UNIT A 8 49-027-05655Active OilUSA ENERGY LLC
ELLIOT A 16 49-027-05340Active OilJP OIL WYOMING LLC
ELLIOTT A 13 49-027-05360Temporarily abandoned OilJP OIL WYOMING LLC
ELLIOTT A 14 49-027-05361Shut in OilJP OIL WYOMING LLC
ELLIOTT A 5 49-027-05373Active OilJP OIL WYOMING LLC
ELLIOTT A 18 49-027-05403Shut in OilJP OIL WYOMING LLC
ELLIOTT A 20 49-027-20294Shut in OilJP OIL WYOMING LLC
ELLIOTT B 3 49-027-05371Active OilJP OIL WYOMING LLC
FAIRA MOONEY 32-8 49-027-26649Shut in GasREMUDA ENERGY DEVELOPMENT LLC
FED 013426 A 1 49-027-06096Active OilDNR OIL & GAS INC
FED 076563 2 49-027-06055Shut in OilKREJCI HARRY L
FED W-25472 1-29 49-027-20141Active GasMILLENNIUM OIL & GAS LLC
FEDERAL 43-34 49-027-20287Active OilUSA ENERGY LLC
FEDERAL 43-5 49-027-20385Shut in Water supplyASHER ASSOCIATES INC
FEDERAL 23-13 49-027-20649Active OilSEEDY DRAW LLC
FEDERAL 24-13 49-027-20694Active OilSEEDY DRAW LLC
FEDERAL 33-10 49-027-20944Active OilKREJCI HARRY L
FEDERAL 1-11 49-027-20959Active OilARENA RESOURCES LLC
FEDERAL 13-30 49-027-26576Shut in OilBEAR CLAW OIL AND GAS LLC
FEDERAL 11-10 49-027-26605Active GasREMUDA ENERGY DEVELOPMENT LLC
FEDERAL 43-35 49-027-26614Shut in InjectionBREITBURN OPERATING L.P.
FEDERAL 21-6 49-027-26615Active InjectionBREITBURN OPERATING L.P.
FEDERAL 23-35 49-027-26633Active OilBREITBURN OPERATING L.P.
FEDERAL 34-35 49-027-26634Shut in Water supplyBREITBURN OPERATING L.P.
FEDERAL 12-35 49-027-26657Active InjectionBREITBURN OPERATING L.P.
FEDERAL 21-35 49-027-26658Shut in OilBREITBURN OPERATING L.P.
FEDERAL 12-6 49-027-26659Active InjectionBREITBURN OPERATING L.P.
FEDERAL 23-6 49-027-26668Active OilBREITBURN OPERATING L.P.
FEDERAL 41-34 RE 49-027-26669Active OilJOEMAR WYOMING OPERATING LLC
FEDERAL 43-27 49-027-26683Shut in OilJOEMAR WYOMING OPERATING LLC
FEDERAL 14-26 49-027-26685Active OilBREITBURN OPERATING L.P.
FEDERAL 12-18 49-027-26692Active OilM & K OIL COMPANY LLC
FEDERAL 13-26 49-027-26815Active OilJOEMAR WYOMING OPERATING LLC
FEDERAL 11A-6 49-027-26821Active OilBREITBURN OPERATING L.P.
FEDERAL 42-27 49-027-26834Active OilJOEMAR WYOMING OPERATING LLC
FEDERAL 12-26 49-027-26835Active OilJOEMAR WYOMING OPERATING LLC
FEDERAL 31-29 49-027-26860Active OilPROVIDENCE OIL DEVELOPMENT LLC
FEDERAL 22-35 49-027-26872Active OilBREITBURN OPERATING L.P.
FEDERAL 31-6 49-027-26886Active OilBREITBURN OPERATING L.P.
FEDERAL 42-35 49-027-26913Shut in OilBREITBURN OPERATING L.P.
FEDERAL B 33-18 49-027-20320Active InjectionJP OIL WYOMING LLC
FEDERAL C 41X-18 49-027-20333Shut in OilPROVIDENCE OIL DEVELOPMENT LLC
FEDERAL O W-61207 0-1 49-027-20564Active OilSUNSHINE VALLEY PETROLEUM
FEDERAL TROWBRIDGE 15-7 49-027-20034Active OilCASTLE ROCK OIL LLC
FEDERAL UNIT W-64745 3 49-027-20625Active OilSUNSHINE VALLEY PETROLEUM
FEDERAL W-101001 1 SLBC FED 35 49-027-20846Active OilKREJCI HARRY L
FEDERAL W-34661 32-35 49-027-20672Active InjectionBREITBURN OPERATING L.P.
FEDERAL W-35651 13-21 49-027-20660Active OilBUCK CREEK FREIGHT INC
FEDERAL W-50085 20-1 49-027-20323Active OilKREJCI HARRY L
FEDERAL W-64028A 43-12 49-027-20725Active OilDARRAH JOHN JAY JR
FEDERAL W-64035 31-19 49-027-20687Shut in Water supplyVAN NORMAN PIPE AND SUPPLY
FEDERAL W-74170A 22-8 49-027-20646Active OilKREJCI HARRY L
FIDDLEBACK 34-1 49-027-26768Active OilCENTURY OIL AND GAS LLC

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