| Business | Phone |
| Bominflot Bunker Oil 10777 Westheimer Rd 955, Houston 77042 | (713) 952-5151 |
| Nord Petroleum 9801 Westheimer Rd, Houston 77042 | (713) 917-6763 |
| Abi Petroleum Inc 33 Lyerly St, Houston 77022 | (713) 695-3774 |
| Alton Petroleum 1 Riverway 1700, Houston 77056 | (713) 840-6360 |
| Cheyenne Petroleum Co 1331 Lamar St, Houston 77010 | (832) 366-1623 |
| Citgo 1293 Eldridge Pkwy, Houston 77077 | (832) 486-4000 |
| Mc Allister Petroleum Svc Ltd 5 Post Oak Cir, Houston 77024 | (713) 297-8457 |
| Greystone Petroleum Llc 1616 S Voss Rd, Houston 77057 | (832) 333-4000 |
| Haltermann Limited 16717 Jacintoport Blvd, Houston 77015 | (281) 452-5951 |
| Listo Petroleum Inc 1600 Smith St, Houston 77002 | (713) 650-0028 |
| Hellen Reasoner Petroleum Land 50 Briar Hollow Ln, Houston 77027 | (713) 877-8494 |
| Herra Dura Petroleum 1415 Louisiana St, Houston 77002 | (713) 654-7711 |
| Laitern Petroleum Corp 950 Echo Ln, Houston 77024 | (713) 465-8580 |
| Naniq Transportation & Svc Co 950 Echo Ln, Houston 77024 | (713) 465-6814 |
| Horizon Petroleum & Gas Group 6100 Corporate Dr, Houston 77036 | (713) 772-4105 |
| Koch Industries Inc 20 E Greenway Plz, Houston 77046 | (713) 544-5000 |
| Houston Petrolem Co 3100 Timmons Ln, Houston 77027 | (713) 523-0145 |
| Key Oil Co 3355 W Alabama St, Houston 77098 | (713) 355-6767 |
| Kargo Petroleum 3300 S Gessner Rd 204, Houston 77063 | (713) 781-0202 |
| Integrity Petroleum Group 1116 Bering Dr, Houston 77057 | (713) 532-4545 |
| Interplus Petroleum Consulting 1035 Dairy Ashford St, Houston 77079 | (281) 497-0880 |
| Montecristo Petroleum Co 3701 Kirby Dr, Houston 77098 | (713) 526-2266 |
| Neste Trading Usa Inc 1800 West Loop S 1700, Houston 77027 | (713) 407-4400 |