| Business | Phone |
| Bud Oil Co 1032 W Main St # 100, Duncan 73533 | (580) 252-4027 |
| Key Operating Co 101 S 15th St # 450, Duncan 73533 | (580) 252-7052 |
| Wetzel Producing Co 18 N 8th St, Duncan 73533 | (580) 255-2929 |
| Whitco Operating Co Rr 3 Box 129w, Duncan 73533 | (580) 444-3626 |
| Pierce Operations 1032 W Main St # 300, Duncan 73533 | (580) 255-8469 |