| Business | Phone |
| Netco Pipeline Llc 18914 Dural Dr, Houston 77094 | (713) 464-4690 |
| Exxon Mobil Pipeline Co 700 Aldine Bender Rd, Houston 77060 | (281) 591-3794 |
| Murphy Brothers Pipeline 7203 Miller Road 2, Houston 77049 | (281) 452-5534 |
| Genesis Crude Oil Lp 500 Dallas St 2500, Houston 77002 | (713) 646-1200 |
| Pipeline Operators Of Texas 1200 Smith St 2250, Houston 77002 | (713) 655-7689 |
| Transwestern Pipeline Co Houston 77002 | (713) 654-7837 |
| United Gas Pipe Line Co 600 Travis St, Houston 77002 | (713) 229-4123 |
| Petro Logistics Llc 909 Fannin St 2630, Houston 77010 | (713) 789-0380 |
| Bj Process & Pipeline Svc 4101 Oates Rd, Houston 77013 | (713) 224-1105 |
| T D Williamson Inc 4220 World Houston Pkwy, Houston 77032 | (832) 448-7200 |
| Longhorn Partners Pipeline Lp 3411 Richmond Ave 500, Houston 77046 | (713) 535-1100 |
| Panhandle Eastern Pipe Line Co 7210 Ardmore St, Houston 77054 | (713) 332-3620 |
| Sabine Gas Transmission Co 5718 Westheimer Rd 1251, Houston 77057 | (713) 651-9301 |
| Western Refining 16800 Imperial Valley Dr, Houston 77060 | (281) 598-0069 |
| Re Pipe Inc 7600 S Santa Fe Dr E, Houston 77061 | (713) 634-0439 |
| Pipeline Corrosion Technology 10071 Briarpark Trail Ln, Houston 77064 | (281) 477-0400 |
| Seminole Pipeline Co 16311 State Highway 249, Houston 77064 | (281) 897-9890 |
| Seminole Pipeline Co 16550 Westheimer Rd, Houston 77082 | (281) 920-5002 |
| Woodward Pipeline Inc 11251 Northwest Fwy, Houston 77092 | (713) 462-0151 |
| Buckeye Gulf Coast Pipelines 1200 Smith St 1000, Houston 77002 | (832) 615-8624 |
| Transwestern Pipeline Co 1331 Lamar St 650, Houston 77010 | (713) 853-0300 |
| Williams Gas Pipeline Transco 12500 Veterans Memorial Dr, Houston 77014 | (281) 444-6441 |
| Teppco Partners Lp 2929 Allen Pkwy, Houston 77019 | (713) 759-3636 |
| Phoenix Gas Pipeline Co 3200 Southwest Fwy 3300, Houston 77027 | (713) 850-7770 |
| Zaplok Pipeline Systems 12100 W Little York Rd, Houston 77041 | (713) 849-6810 |