| Type | Graduate |
| End Date | 1970-00-00 |
| Degree | Juris Doctor |
| Field | Law |
| Is Dropout | no |
| Notes | Mr. Langdon received his B.B.A. in 1967 and his J.D. in 1970 from the University of Texas. He is a member of the District of Columbia Bar. He has presented numerous papers to various energy law groups, including the Southwestern Legal Foundation Institute on oil and gas law and taxation. |