324.61001 Definitions. Sec. 61001. As used in this part: (a) 'Department' means the department of natural resources. (b) 'Severed oil and gas rights' means those subsurface oil and gas rights held by the department on land in which the department does not own the surface rights to the land. History: Add. 1998, Act 117, Imd. Eff. June 9, 1998 Popular Name: Act 451Popular Name: NREPA