Oil & Gas Companies in Harper County, OK

Company NameCompany LocationCompany TypeMost Recent Production
1D & D Pipe & Equipment IncKingfisher, OK 73750Oil & Gas OperatorMar 2005
2D & J Oil CoKermit, TX 79745Oil & Gas OperatorApr 2025
3D C Energy, Inc.Oklahoma City, OK 73134Oil & Gas OperatorApr 2020
4D-Mil Production IncArgyle, TX 76226Oil & Gas OperatorApr 2025
5Daco, Inc.Spearman, TX 79081Oil & Gas OperatorApr 2025
6Dalen Resources Oil & Gas Co.Dallas, TX 75206Oil & Gas OperatorJun 2010
7Damson Oil CorporationHouston, TX 77210Oil & Gas OperatorMar 2005
8Daube Company TheArdmore, OK 73401Oil & Gas OperatorFeb 2025
9Dawson Resources IncFranktown, CO 80116Oil & Gas OperatorMar 2015
10Dawson-Markwell Exploration Co.Oklahoma City, OK 73101Oil & Gas OperatorJan 2025
11DCP Operating Co LPHouston, TX 77042Oil & Gas OperatorJan 2025
12Decalta International CorpDenver, CO 80202Oil & Gas OperatorMar 2015
13Devon Energy Corp (Nevada)Oklahoma City, OK 73102Oil & Gas OperatorFeb 2017
14Devon Energy Production Company LPOklahoma City, OK 73102Oil & Gas OperatorApr 2025
15Devon Louisiana CorporationHouston, TX 77002Oil & Gas OperatorOct 2019
16Diamond Energy Operating CompanyTulsa, OK 74137Oil & Gas OperatorMar 2005
17Dinero Operating CoMidland, TX 79702Oil & Gas OperatorApr 2025
18Dinsmore C EEnid, OK 73702Oil & Gas OperatorMay 2009
19DLB Energy CorporationOklahoma City, OK 73118-1401Oil & Gas OperatorDec 2014
20DLB Oil & Gas, Inc.Big Lake, TX 76932Oil & Gas OperatorApr 2025
21DMS Oil CompanyHouston, TX 77042Oil & Gas OperatorJan 2025
22Dominion Exploration & Production IncHouston, TX 77060Oil & Gas OperatorApr 2015
23Dominion Ok TX E & P IncOklahoma City, OK 73134Oil & Gas OperatorNov 2018
24Draco Production CompanyTulsa, OK 74133Oil & Gas OperatorJul 2012
25Dragon Energy LLCTulsa, OK 74135-7234Oil & Gas OperatorFeb 2015
26Draw Oil & Gas IncOil & Gas OperatorJun 1995
27Duggins Equipment IncWoodward, OK 73802-1213Gas OperatorJan 2025
28Duncan Oil Properties, Inc.Oklahoma City, OK 73102Oil & Gas OperatorApr 2025
29Dyco Petroleum CorporationTulsa, OK 74103Oil & Gas OperatorMar 2015