Oil & Gas Companies in Harper County, OK

Company NameCompany LocationCompany TypeMost Recent Production
1H & L Operating Co LLPAmarillo, TX 79114Oil & Gas OperatorAug 2022
2H & L Operating CompanyAmarillo, TX 79114Oil & Gas OperatorFeb 2020
3H A Oil & Gas CompanyLaverne, OK 73848-0100Gas OperatorMar 2002
4Hadson Petroleum CorporationOklahoma City, OK 73102Oil & Gas OperatorMar 2015
5Halcon Holdings IncAda, OK 74820Oil & Gas OperatorNov 2018
6Hallwood Petroleum, Inc.Midland, TX 79701Oil & Gas OperatorAug 2024
7Harbor Resources LLCOklahoma City, OK 73120Oil & Gas OperatorApr 2025
8Harding & Shelton IncOklahoma City, OK 73104-2410Oil & Gas OperatorJan 2025
9Harding And Shelton Exploration LLCOklahoma City, OK 73101-1557Oil & Gas OperatorJan 2025
10Harken Exploration CompanyHouston, TX 77079Oil & Gas OperatorMar 2008
11Harrell Petroleum IncOklahoma City, OK 73102-7201Oil & Gas OperatorOct 2017
12Hartman Oil Company IncWichita, KS 67206Oil & Gas OperatorDec 2024
13Hawkins Oil & Gas IncTulsa, OK 74103Oil & Gas OperatorDec 2016
14Hazlewood Oil & Gas Co IncOklahoma City, OK 73139-9353Oil & Gas OperatorApr 2022
15HCMDallas, TX 75206Oil & Gas OperatorMar 2015
16Headington Oil CompanyDallas, TX 75231Oil & Gas OperatorDec 2016
17Headington Oil Company LLCDallas, TX 75204Oil & Gas OperatorApr 2016
18Heartland Environmental ServicesWatonga, OK 73080Oil & Gas OperatorMay 1999
19Helmerich & Payne, Inc.Tulsa, OK 74114Oil & Gas OperatorJan 2025
20Hennessey Oil & Gas LLCHennessey, OK 73742-0212Oil & Gas OperatorSep 2024
21Heritage Petroleum, Inc.Stillwater, OK 74076Oil & Gas OperatorApr 2025
22Herrman & IkenberryCushing, OK 74023-0247Oil & Gas OperatorDec 2003
23Hinkle Engineering, Inc.Oklahoma City, OK 73112Oil & Gas OperatorNov 2016
24Hodgden Operating Co., Inc.Enid, OK 73702Oil & Gas OperatorFeb 2025
25Holke Dave Consulting IncMeridian, ID 83646-4812Oil & Gas OperatorJan 2025
26Hondo Oil & Gas CompanyRoswell, NM 88202Oil & Gas OperatorAug 2006
27Horizon Natural Gas CompanyTulsa, OK 74170Oil & Gas OperatorOct 2024
28Horizon Natural Resources, Inc.Tulsa, OK 74136Oil & Gas OperatorJan 2019
29Hosco Operating IncSeminole, OK 74868-2447Oil & Gas OperatorAug 2017
30Hovas EnterprisesPerkins, OK 74059Oil & Gas OperatorMar 2014
31HRB Operating Company IncBridgeport, TX 76426Oil & Gas OperatorApr 2025
32Huber J M CorpEdison, NJ 08837Oil & Gas OperatorApr 2025
33Hugoton Energy CorporationOklahoma City, OK 73113Oil & Gas OperatorDec 2019
34Hunt Oil CompanyDallas, TX 75201Oil & Gas OperatorApr 2025