Assignment of Assignor's Interest

Recorded: 2007-04-09 Pages: 2

Assignor

GIPSON, TOMMIE C.

Executed: 2007-03-28

Assignee

NORTHERN PLAINS DRILLING, INC.

2711 N. HASKELL AVENUE, SUITE 2800, DALLAS, TEXAS, 75204

Covered Property (1)

Combination Workover and Drilling Rig

Patent: 7,152,672 →

Application: 11/338,573 →

Related Assignments (2)

Other recorded transfers of the patent in this record — the chain of ownership.