Prefeered Drilling Co., Inc. in Oklahoma lists Bob Rogers of Oklahoma City, OK and Earl E Lawrence of Mustang, OK as associates.
| 
                                                            Ferrill H. Rogers
                                                            Registered Agent
                                                         | 
                                                                        
                                                                                1420 CITY NAT''L BANK TOWER, OKLAHOMA CITY, OK
                                                                        
                                                             | |
| 
                                                            Bob Rogers
                                                            
                                                         | 
                                                                        
                                                                                OKLAHOMA CITY, OK
                                                                        
                                                             | |
| 
                                                            Earl E Lawrence
                                                            
                                                         | 
                                                                        
                                                                                MUSTANG, OK
                                                                        
                                                             | |
| 
                                                            Windell Everett
                                                            
                                                         | 
                                                                        
                                                                                EDMOND, OK
                                                                        
                                                             | 
| 
                                    Astro Oil, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Buena Vista Corporation
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Ja-Pa Petroleum Corp
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Maego Minerals, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Red Ridge Royalties, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Regal Resources, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Sterling Industries, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Tejas Corporation
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    The Commodity Clearing House, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Camelot Exploration Company
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Allied National Drilling Corporation
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Amtec Energy & Exploration Corporation
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Astra-Bar, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Condor Drilling Company
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Cornish Specialists, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Pan Anadarko Oil Company. S.A.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Prudential Petroleum, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Todd & Sanders, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Reserve Oils, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | 
| 
                                    Bjr & Associates, L.P.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Preferred Funding Company, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Preferred Oil Corporation
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Preferred Security Corporation
                                    Registered in Oklahoma
                                 | Edmond, OK | View Report | |
| 
                                    Psc Agency of Oklahoma, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Psc Securities, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Charitable and Educational Foundation
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Farmer-Stockman Association
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Farmer-Stockman Fraternal Benefit Society
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    American Trend Life Insurance Company
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Graham-Rogers, Inc.
                                    Registered in Oklahoma
                                 | Bartlesville, OK | View Report | |
| 
                                    Bob Rogers Company
                                    Registered in Oklahoma
                                 | Okla.City, OK | View Report | |
| 
                                    Cajun's Wharf, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Freight Trucks, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Omnifunds LTD.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Preferred Legal Services Plan, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Roco, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Sheppa, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | 
| 
                                    Alpha Drilling, Inc.
                                    Registered in Oklahoma
                                 | Oklahoma City, OK | View Report | |
| 
                                    Earl Lawrence Consultants, Inc.
                                    Registered in Oklahoma
                                 | Yukon, OK | View Report | 
The following government agencies have contributed data:
Oklahoma Secretary of State