- A 2nd Opinion
- Accutest Services Inc
- Additive Systems Inc
- Advantek International
- Agip Petroelum
- Altuda Geological Consulting
- Altuda Geological Consulting
- American Global Resources Inc
- American Global Resources Inc
- American Petro
- Ameripower LLC
- Amspec Services LLC
- Andalusia Petroleum Svc
- APA USA Inc
- Applied Petroleum Technologies
- Applied Petroleum Technology
- Argonauta Energy
- Arnold Ballard & Co
- Aspen Petroleum Group
- Award Oil
- B & W Southern Petroleum
- B P Taylor & Assoc
- Badger State Ethanol
- Badgwell & Assoc Inc
- Bagnall & Barber Petroleum Inc
- Baird Petrophysical Intl
- BASELINE-Dgsi
- Bay Systems
- Bayou Petrophysics
- Bessero Oil Co
- Bethancourt Oil & Gas Co
- Bishop Enderby
- Bob Sample & Assoc
- Bob Sullivan
- BSI Inspectorate America
- Bsi Inspectorate America Corp
- Burkhart Enterprises Inc
- Burkhart Enterprises Inc
- C B Godfrey & Assoc
- C L Brittan & Assoc Inc
- Calhoun Engineering Inc
- Cameo Productions Co
- Cape Environmental Mgmt Inc
- Cardinal Resources
- Cary N Billingsley
- Cary N Billingsley
- Cawley Gillespie & Assoc Inc
- Ccc
- Celeghin Consultants Corp
- Certified Petroleum Svc
- Ch4 Petroleum Consultants
- Chain Oil & Gas Inc
- Chaparral Energy Inc
- Chaparral Energy Inc
- Charles E Graham III & Assoc
- China National Petroleum Corp
- Coastal Production Svc
- Cogent Energy
- Commercial Microbiology
- Commercial Microbiology
- Commercial Services Co LTD
- Complete Land & Permit Svc
- Concept Petroleum Inc
- Concessions International
- Conoco
- Conoco Production
- Cornerstone Petroleum LLC
- Crisis Event Management Svc
- Crozier & Co
- Crude Resources Inc
- Cullum Interest Inc
- Cypress Exploration Engrng
- D R Lutton & Assoc
- Dan Blocker Petroleum Cnsltnts
- Dan Blocker Petroleum Cnsltnts
- Database Concepts Inc
- Database Concepts Inc
- Database Concepts Inc
- Degolyer & Mac Naughton
- Degolyer & Macnaughton
- Del Gac
- Dewitt & Co Inc
- Dixon Services
- DJH Energy Consulting Co
- DJH Energy Consulting Co
- Don Johnson Oil & Gas Inc
- Don Rhodes & Assoc
- Donald Chase
- Donald W Jackson
- Doss Aviation Inc
- Dowdle & Assoc Inc
- Dowdle & Assoc Inc
- Doyle S Bivins
- Doyle S Bivins
- Drilling Technology Inc
- Drilling Technology Inc
- Dudley H Smith Inc
- Dutton Production Svc
- DWC Consultants Inc
- DXN Assoc
- E Ralph Green & Petro Conslnt
- Earle Hellums
- Earle Hellums
- Earthview Associates Inc
- Earthview Associates Inc
- Easternoil Service Inc
- EDP Management Co
- EDP Management Co
- Edwards Energy Consultants
- Edwards Energy Consultants
- Edwards Enery Consultants
- Edwards Enery Consultants
- Edwards Petroleum
- Eetradeco LLC
- Ely Associates Inc
- Ely Associates Inc
- Energy Management Corp
- Energy Management Corp
- Energy Operators Inc
- Energy Operators Inc
- Eric Hyman & Assoc
- Estrella Oil & Gas Consltng
- Estrella Oil & Gas Consltng
- Exploitation Engineers Inc
- Exploitation Engineers Inc
- Exploitation Engineers Inc
- Expro Engineering Co
- Expro Engineering Co
- Expro Engineering Co
- F & S Development
- F & S Development
- F & S Development
- Fairchild & Wells Inc
- Fairchild & Wells Inc
- Fairchild Ancell & Well
- Fairchild Ancell & Well
- Fairchild Ancell & Wells
- Fairchild Ancell & Wells
- Fairweather
- Fairweather
- FBC Technology
- Fenner Services Inc
- Fenner Services Inc
- FHB Stratigraphic Svc
- FOG Inc
- Forrest A Garb & Assoc Inc
- Frank Allison & Assoc
- Frontier Petroleum Svc
- Fusions Petroleum Technologies
- G & B Petroleum
- G & W Systems Corp
- G & W Systems Corp
- G E Oil Technology Inc
- G E Oil Technology Inc
- Gas-Tel Inc
- Gas-Tel Inc
- GCSSEPM Foundation
- GCSSEPM Foundation
- Gemini Solutions
- Gemini Solutions
- Geo-Check
- George E Burgher
- George E Burgher
- George W Friesen
- Giebel Petroleum LTD
- Glenn S Brant
- GNT Intl Inc
- GNT Intl Inc
- Golden Engineering LP
- Golden Engineering LP
- Grant Rod & Co Inc
- Greg Zielinski Inc
- Greg Zielinski Inc
- H J Gruy & Assoc
- H J Gruy & Assoc Inc
- H J Gruy & Assoc Inc
- H Lee Matthews Pe
- H Rudy Parkison Inc
- Hadaway Engineering Inc
- Hansen Consulting Group
- Harco Minerals Inc
- Harco Minerals Inc
- Hari Prasad Production Inc
- Harlan Consulting
- Harold M Smotherman
- Harper Associates Inc
- Hennig Production Co
- Hickory Acquistion Group Inc
- High Ground Inc
- Hite Mcnichol & Assoc Inc
- Hite Mcnichol & Assoc Inc
- HTK Consultants Inc
- HTK Consultants Inc
- Hughes Petroleum
- IFP
- IFP
- Improved Petroleum
- Innovative Marketing Svc
- Innovative Marketing Svc
- Inspectorate America Corp
- Inspectorate America Corp
- Inspectorate America Inc
- Inspectorate America Inc
- Integrated Exploration Svc
- Integrated Exploration Svc
- International Completion Consl
- International Completion Consl
- J & W Engineering Inc
- J B Coffman & Assoc Inc
- J B Coffman & Assoc Inc
- J Connor Consulting
- J Connor Consulting
- J Petroleum LLC
- J Petroleum LLC
- J R Butler & Co
- J R Butler & Co
- Jack R Blann & Assoc
- Jack R Blann & Assoc
- Jackson Capital Corp
- Jackson Capital Corp
- James B Henry
- James L Stroope & Assoc
- James L Stroope & Assoc
- JDA & Assoc
- Joe C Neal & Assoc
- John L Gidley & Assoc
- John L Gidley & Assoc
- John S Herold Inc
- John S Herold Inc
- Kappa Engineering
- Kappa Engineering
- Ken Baker & Assoc
- Kingelin & Assoc
- Klaveness Research Co
- Klaveness Research Co
- Krebs Petroleum Technologies
- Krebs Petroleum Technologies
- Krebs Petroleum Technologies
- Krebs Petroleum Technologies
- Kuwait Petroleum
- Kuwait Petroleum
- LA Roche Petroleum Consultants
- Laufer
- Le Clair Operating Inc
- Le Clair Operating Inc
- Lewco Integrated Tech Svc Inc
- Loren & Assoc Inc
- Loren & Assoc Inc
- M A Schuepbach Intl Oil
- M K Tech Solutions
- M K Tech Solutions
- M P Capsimalis & Assocs Inc
- M P Capsimalis & Assocs Inc
- Madison Energy Advisor's Inc
- Madison Energy Advisor's Inc
- Magnolia Global Energy
- Maio-Plybon Geoscience
- Malone Petroleum Consulting
- Malone Petroleum Consulting
- Mark L Shidler Inc
- Mark L Shidler Inc
- Martindale Consultants Inc
- Martindale Consultants Inc
- Mason Map Svc Inc
- Mason Map Svc Inc
- Matlock Oil & Gas Inc
- Matlock Oil & Gas Inc
- Matlock Oil & Gas Inc
- Maurer Engineering Inc
- Mc Cauley & Assoc
- Mc Cauley & Assoc
- Mc Clurg & Cook Petroleum
- Mcday Energy Corp
- Mcs Technologies LLC
- Mcs Technologies LLC
- Merlon Petroleum
- Merlon Petroleum
- Miller Consulting Inc
- Miller Consulting Inc
- Moffitt & Assoc
- Moore & Assoc
- Morgan Grover Loss
- National Petroleum Mgmt Assn
- National Petroleum Mgmt Assn
- Natural Resource Mgmt Inc
- Netherland Sewell
- Netherland Sewell & Assoc Inc
- NSI Technologies Inc
- O'Briant & Assoc
- Ogre Partners
- Onyx Operating Inc
- Onyx Operating Inc
- Ouray Petroleum Inc
- Patton Consulting Inc
- Paul R Clevenger Petroleum
- Paul R Clevenger Petroleum
- Petroacct
- Petrochemical Svc Inc
- Petrogrowth Advisors
- Petroleum & Ranch Properties
