| Business | Phone |
| Mercury Midstream Llc 7600 W Tidwell Rd, Houston 77040 | (713) 460-0377 |
| Pipeline Machinery Intl 12800 Northwest Fwy, Houston 77040 | (713) 939-0009 |
| Dow Pipeline Co 400 W Sam Houston Pkwy S 2, Houston 77042 | (713) 978-3081 |
| Seminole Creek Ltd 3535 Briarpark Dr, Houston 77042 | (713) 458-1414 |
| Ames Gas Gathering 19 Briar Hollow Ln, Houston 77027 | (713) 621-2637 |
| Atmos Energy Marketing Llc 13430 Northwest Fwy 700, Houston 77040 | (713) 688-7771 |
| Attco Pipeline 10702 Cullen Blvd, Houston 77047 | (713) 731-2815 |
| Bj Process & Pipeline Svc 4101 Ohtes Load, Houston 77013 | (832) 519-2000 |
| Bourland & Leverich 11811 North Fwy 500, Houston 77060 | (281) 591-4740 |
| Bp Pipeline North America 9013 Sheldon Rd, Houston 77049 | (281) 456-5400 |
| Buccaneer Pipe Line Co 910 Louisiana St, Houston 77002 | (713) 227-7660 |
| Buckeye Gulf Coast Pipe Line 1200 Smith St, Houston 77002 | (713) 654-7187 |
| Buckeye Gulf Coast Pipelines 1200 Smith St # 1000, Houston 77002 | (713) 654-7150 |
| Chero-Key Piping Co 11936 Brittmoore Park Dr, Houston 77041 | (713) 856-5612 |
| Chevron Pipe Line Co 2811 Hayes Rd, Houston 77082 | (281) 596-2828 |
| Choctaw Resources 3220 Fm 1960 Rd W, Houston 77068 | (281) 586-7900 |
| Citgo Petroleum Corp 12325 North Fwy, Houston 77060 | (281) 875-9222 |
| Citgo Pipeline Co 11316 1/2 Gloria Dr, Houston 77013 | (713) 675-4617 |
| Citgo Products Pipeline Co 6402 Uvalde Rd, Houston 77049 | (281) 458-1434 |
| Columbia Gulf Transmission Co 2603 Augusta Dr 300, Houston 77057 | (713) 267-4100 |
| Cowboy Pipeline Svc 12000 Lawndale St, Houston 77017 | (713) 473-3960 |
| Cowboy Pipeline Svc Co 1200 Smith St 2250, Houston 77002 | (713) 652-5700 |
| Crosstex Energy Svc 675 Bering Dr, Houston 77057 | (713) 783-8686 |
| Duke Energy Field Svc 5718 Westheimer Rd 2000, Houston 77057 | (713) 627-6200 |
| Enbridge Energy Partners Lp 1100 Louisiana St 3300, Houston 77002 | (713) 821-2000 |
| Gulf South Pipeline Co Lp 20 E Greenway Plz, Houston 77046 | (713) 544-6000 |
| Enterprise Pipeline Emergency 2727 North Loop W, Houston 77008 | (713) 688-2122 |
| Eott Energy 3225 Woodland Park Dr, Houston 77082 | (281) 759-3190 |
| Explorer Pipeline Co 2201 Federal Rd, Houston 77015 | (713) 453-7633 |
| Exxon Mobil Pipeline Co 1301 Fannin St, Houston 77002 | (214) 742-3106 |
| Exxon Mobil Pipeline Co 15215 W Hardy, Houston 77060 | (281) 591-3700 |
| Mission Pipeline 3700 Buffalo Speedway, Houston 77098 | (713) 871-1964 |
| Mississippi River Gas 340 Saint James Pl 610, Houston 77056 | (713) 627-8807 |
| Mesa Pipeline Co 1200 Smith St, Houston 77002 | (713) 655-1221 |
| Texas Gas Resources Inc 2180 North Loop W 303, Houston 77018 | (713) 688-3366 |
| Longhorn Partners Pipeline Co 3633 Allen Pkwy 220, Houston 77019 | (713) 529-1555 |
| Enron Corp 1221 Lamar St 1600, Houston 77010 | (713) 853-6161 |
| Houston Pipeline Lp 9502 Musical Ct, Houston 77040 | (713) 937-8959 |
| Houston Pipline Co 1201 Louisiana St, Houston 77002 | (832) 668-1000 |
| Kaston Pipeline Co Lp 16800 Imperial Valley Dr, Houston 77060 | (281) 598-0064 |
| Jetair International 580 Westlake Park Blvd, Houston 77079 | (281) 368-7050 |
| Morris Pipeline Co 3417 Milam St, Houston 77002 | (713) 526-1260 |
| Netco Pipeline Llc 15615 Ripplewind Ln, Houston 77068 | (281) 440-3570 |