| Lease Name | Location | Operator | Oil Prod | Gas Prod | 
| Dudley L-1 | Neosho County, KS | River Rock Operating, LLC |  |  | 
| Dudley Township Unit 3-12 | Haskell County, KS | Chaco Energy Company |  |  | 
| Dudley Unit 1 | Stevens County, KS | Merit Energy Company, LLC |  |  | 
| Dudley Unit 1-2 | Stevens County, KS | Scout Energy Management LLC |  |  | 
| Dudley Unit 1-3 | Stevens County, KS | Scout Energy Management LLC |  |  | 
| Dudley Unit 2-3 | Stevens County, KS | Scout Energy Management LLC |  |  | 
| Dudley Unit 2-4 | Stevens County, KS | Scout Energy Management LLC |  |  | 
| Dudley, Edwinna G. 24-3 | Neosho County, KS | River Rock Operating, LLC |  |  | 
| Dudley, Edwinna G. 24-4 | Neosho County, KS | River Rock Operating, LLC |  |  | 
| Dudley,E. 25-1 | Neosho County, KS | River Rock Operating, LLC |  |  | 
| Dudrey | Stafford County, KS | CATT Drilling Co. |  |  | 
| Dudrey | Pratt County, KS | DUDREY CARL |  |  | 
| Dudrey | Stafford County, KS | H & D Exploration LLC |  |  | 
| Dudrey | Stafford County, KS | Thomas Garner, Inc. |  |  | 
| Dudrey | Stafford County, KS | C & B Operating Inc. |  |  | 
| Dudrey | Stafford County, KS | C & B Operating Inc. |  |  | 
| Dudrey #1-7 | Seward County, KS | Oil Producers, Inc. of Kansas |  |  | 
| Dudrey #4 | Pratt County, KS | C & B Operating Inc. |  |  | 
| Dudrey 01 | Pratt County, KS | C & B Operating Inc. |  |  | 
| Dudrey 1 | Seward County, KS | First National Oil, Inc. |  |  | 
| Dudrey 1 | Pratt County, KS | Apollo Energies, Inc. |  |  | 
| Dudrey 1-18 | Seward County, KS | Merit Energy Company, LLC |  |  | 
| Dudrey 1-23 | Stafford County, KS | Edison Operating Company LLC |  |  | 
| Dudrey 1-35 | Stafford County, KS | Rockhound Petroleum, LLC |  |  | 
| Dudrey 2-18 | Seward County, KS | Merit Energy Company, LLC |  |  | 
| Dudrey 2-21 | Stafford County, KS | Bob's Hauling Service, Inc. |  |  | 
| Dudrey 2-7 | Seward County, KS | Oil Producers, Inc. of Kansas |  |  | 
| Dudrey 3-18 | Seward County, KS | Merit Energy Company, LLC |  |  | 
| Dudrey 7-36 | Pratt County, KS | Trek AEC, LLC |  |  | 
| Dudrey 7-36 | Pratt County, KS | Trek AEC, LLC |  |  | 
| Duell 02-17 | Sherman County, KS | Own Resources Operating LLC |  |  | 
| Duell 1-10 | Sherman County, KS | Own Resources Operating LLC |  |  | 
| Duell 1-17 | Sherman County, KS | Own Resources Operating LLC |  |  | 
| Duell 11-27 | Sherman County, KS | Own Resources Operating LLC |  |  | 
| Duell 11-28 | Sherman County, KS | Own Resources Operating LLC |  |  | 
| Duell 14-21 | Sherman County, KS | Own Resources Operating LLC |  |  | 
| Duell 3-13 | Sherman County, KS | Own Resources Operating LLC |  |  | 
| Duell 4-17 | Sherman County, KS | Own Resources Operating LLC |  |  | 
| Duell 41-29 | Sherman County, KS | Own Resources Operating LLC |  |  | 
| Duell Trusts 33-33 | Cheyenne County, KS | Own Resources Operating LLC |  |  | 
| Duell Trusts 34-33 | Cheyenne County, KS | Own Resources Operating LLC |  |  | 
| Duerksen | McPherson County, KS | OCFIW Oil Company, Inc. |  |  | 
| Duerksen | Marion County, KS | SCHULZ ROGER A |  |  | 
| Duerksen | Marion County, KS | Reed, George A. |  |  | 
| Duerksen A | Marion County, KS | Te-Pe Oil & Gas |  |  | 
| Duerksen A-1 | Marion County, KS | Te-Pe Oil & Gas |  |  | 
| Dueser | Rice County, KS | StrataKan Exploration, LLC |  |  | 
| Dueser 'A' | Lane County, KS | Benchmark Oil & Gas Corporation |  |  | 
| Dueser-French | Barton County, KS | Wes Tech Energy Company, Inc. |  |  | 
| Dueser-French 'B' | Barton County, KS | WESTECH ENERGY C |  |  |