| Business | Phone |
| Texas Drilling Observer 3605 Steck Ave, Austin 78759 | (512) 372-9772 |
| Subsurface Library 305 Blueridge Trl, Austin 78746 | (512) 328-3697 |
| Southwest Energy Consultants 1301 Nueces St 100, Austin 78701 | (512) 469-0064 |
| Records Research Inc 1801 Lavaca St 110, Austin 78701 | (512) 476-2121 |
| Mason Map Svc Inc 815 Brazos St, Austin 78701 | (512) 472-4646 |
| Hpdi 9300 Research Blvd 306, Austin 78759 | (512) 418-0777 |
| D-B Assoc 815 Brazos St 205, Austin 78701 | (512) 457-0032 |
| Drilling Info 8303 N Mo Pac Expy 400c, Austin 78759 | (512) 477-9200 |
| James H Murray Inc 12118 Shropshire Blvd, Austin 78753 | (512) 833-9192 |
| Pds On-Line Svc 2630 Exposition Blvd G14, Austin 78703 | (512) 482-9111 |
| Energy Drilling Records 4008 Sinclair Ave, Austin 78756 | (512) 422-1895 |