| Business | Phone |
| Corner Stone Energy 12941 North Fwy # 333, Houston 77060 | (713) 652-9977 |
| Apache International Inc 2000 Post Oak Blvd, Houston 77056 | (713) 296-6000 |
| Amoruso Petroleum Co 1301 Travis St 1220, Houston 77002 | (713) 652-4031 |
| Energy Auction Exchange Llc 8000 W Tidwell Rd, Houston 77040 | (713) 996-9834 |
| Hansen Exploration 16309 Koester St, Houston 77040 | (713) 937-8157 |
| Jmi Energy Inc 7600 W Tidwell Rd, Houston 77040 | (713) 895-8899 |
| Laredo Energy Lp 13430 Northwest Fwy, Houston 77040 | (713) 895-0225 |
| Leonard Barker Oil & Gas 14610 Wind Forest Ct, Houston 77040 | (713) 466-5525 |
| Maropco 7600 W Tidwell Rd 503, Houston 77040 | (713) 690-4321 |
| Pines Exploration Co 16101 Wall St, Houston 77040 | (713) 896-1571 |
| National Offshore 1300 N Sam Houston Pkwy E, Houston 77032 | (409) 744-6385 |
| Continental Land & Fur Co 450 Gears Rd 700, Houston 77067 | (281) 873-9378 |
| Advanced Resources Intl Inc 9801 Westheimer Rd 805, Houston 77042 | (713) 780-0815 |
| Andex Energy Inc 11000 Richmond Ave, Houston 77042 | (713) 548-2480 |
| Campex Co 2825 Wilcrest Dr 560, Houston 77042 | (713) 782-9616 |
| Central Crude Inc 10370 Richmond Ave 975, Houston 77042 | (713) 783-2167 |
| Centurion Exploration 10333 Richmond Ave 800, Houston 77042 | (281) 220-3300 |
| Citadel Energy Inc 9801 Westheimer Rd 800, Houston 77042 | (713) 339-2490 |
| Dbr Fluid Properties Inc 2922 Rogerdale Rd, Houston 77042 | (713) 266-0770 |
| Dms Oil Co 3100 Wilcrest Dr 250, Houston 77042 | (713) 953-7718 |
| Explore Enterprises Llc 2901 Wilcrest Dr, Houston 77042 | (713) 783-8760 |
| Focus Exploration Llc 10333 Richmond Ave 750, Houston 77042 | (713) 435-0021 |
| Frontier Resources Intl Inc 10375 Richmond Ave # 1670, Houston 77042 | (713) 954-5048 |
| Gx Technology Corp 2101 Citywest Blvd 3-90, Houston 77042 | (713) 789-7250 |
| Geophysical Services 10850 Richmond Ave, Houston 77042 | (713) 782-3035 |
| Gmt Inc 10260 Westheimer Rd 650, Houston 77042 | (713) 334-6001 |
| Intelligent Agent Corp 3300 S Gessner Rd, Houston 77063 | (713) 953-0823 |
| Jwr Exploration Inc 2929 Briarpark Dr 214, Houston 77042 | (713) 784-4080 |
| Kca Deutag Drilling Inc 10777 Westheimer Rd, Houston 77042 | (713) 243-6230 |
| M C Energy Svc Inc 800 Gessner Rd, Houston 77024 | (832) 242-6766 |
| Magnolia Energy Svc 10333 Richmond Ave, Houston 77042 | (713) 954-2096 |
| Mariner Energy 2101 Citywest Blvd # 1900, Houston 77042 | (713) 954-5500 |
| Masters Resources Llc 9801 Westheimer Rd 1070, Houston 77042 | (832) 252-1801 |
| Miller Energy Inc 7660 Woodway Dr 250, Houston 77063 | (713) 953-0191 |
| Mineral Investment Corp 3000 Wilcrest Dr 115, Houston 77042 | (713) 977-0313 |
| Mohave Oil & Gas Corp 11000 Richmond Ave, Houston 77042 | (713) 975-9923 |
| Nautilus Usa 3603 Westcenter Dr 110, Houston 77042 | (713) 266-2224 |
| Ncx Co Llc 3200 Southwest Fwy, Houston 77027 | (713) 975-0013 |
| Northfirst Investments Inc 800 Wilcrest Dr, Houston 77042 | (713) 278-0015 |
| Novus Oil & Gas 10375 Richmond Ave, Houston 77042 | (713) 328-3900 |
| Offshore Consultants Inc 9800 Richmond Ave, Houston 77042 | (713) 782-4122 |
| Petrobras America Inc 10777 Westheimer Rd 1200, Houston 77042 | (713) 781-9798 |
| Plexus Investments Usa Inc 10777 Westheimer Rd 1125, Houston 77042 | (713) 782-7799 |
| Nabors Well Svc Co 10375 Richmond Ave, Houston 77042 | (713) 954-3000 |
| Prime Natural Resources Inc 2500 Citywest Blvd 1750, Houston 77042 | (713) 784-5634 |
| Red River Energy 411 N Sam Houston Pkwy E, Houston 77060 | (281) 447-7700 |
| Redman Energy Corp 10375 Richmond Ave 1325, Houston 77042 | (713) 782-1377 |
| Santos Usa Corp 10111 Richmond Ave, Houston 77042 | (713) 986-1700 |
| Simulis Llc 9700 Richmond Ave 124, Houston 77042 | (713) 956-9000 |
| Tgs-Nopec Geophysical Co 2500 Citywest Blvd 2000, Houston 77042 | (713) 860-2100 |
| Vicksburg Petroleum Inc 2925 Briarpark Dr 1285, Houston 77042 | (713) 782-9074 |
| Well Data 10375 Richmond Ave, Houston 77042 | (713) 974-0856 |
| Wellstream Corp 15150 Memorial Dr, Houston 77079 | (281) 368-7400 |
| 5mcc Co 815 Walker St, Houston 77002 | (713) 225-5775 |
| A Gip Petroleum Co Inc 1201 Louisiana St 3500, Houston 77002 | (713) 393-6100 |
| Abaco Operations Llc 15990 N Barkers Landing # 155, Houston 77079 | (281) 496-4963 |
| Aedcusa Inc 1990 Post Oak Blvd, Houston 77056 | (713) 963-9101 |
| Afex International Inc 952 Echo Ln 300, Houston 77024 | (713) 973-2015 |
| Richard E Agee 840 Gessner Rd # 840, Houston 77024 | (713) 468-0050 |
| Alcorn Exploration 2000 Post Oak Blvd 2410, Houston 77056 | (713) 622-3800 |
| Alliant Geophysical 10694 Haddington Dr 120, Houston 77043 | (713) 647-6900 |
| Alltex Exploration Inc 5850 San Felipe St 370, Houston 77057 | (713) 627-8787 |
| Alta Resources Llc 500 Dallas St 2920, Houston 77002 | (713) 759-1155 |
| Altinex 16223 Park Row, Houston 77084 | (281) 599-1776 |
| American Coastal Energy Inc 1320 South Loop W 1b, Houston 77054 | (713) 796-2623 |
| American International Energy 2909 Hillcroft St 550, Houston 77057 | (713) 785-6938 |
| Amromco Energy 16225 Park Ten Pl, Houston 77084 | (281) 994-4007 |
| Anderson Oil Limited 5005 Woodway Dr 300, Houston 77056 | (713) 652-5746 |
| Anglo Suisse Offshore Partners 1111 Bagby St 4800, Houston 77002 | (713) 275-7700 |
| Anglo-Dutch Petroleum Intl 8 E Greenway Plz 900, Houston 77046 | (713) 993-9303 |
| Anglo-European Energy 3845 Fm 1960 Rd W, Houston 77068 | (281) 893-3542 |
| Antar International Inc 14300 Cornerstone Village Dr, Houston 77014 | (281) 866-7027 |
| Apex Oil & Gas Inc 450 Gears Rd, Houston 77067 | (281) 591-8880 |
| Aquarius Resources Inc 11200 Westheimer Rd, Houston 77042 | (713) 781-5172 |
| Arctic Slope Regional Corp 16420 Park Ten Pl, Houston 77084 | (713) 465-7332 |
| Arefco Seals Inc 1209 West Loop N 130, Houston 77055 | (713) 683-9600 |
| Aroc Inc 110 Cypress Station Dr, Houston 77090 | (281) 537-9920 |
| Aspect Resources 16420 Park Ten Pl, Houston 77084 | (281) 597-6765 |
| Aspect Resources Llc 12707 North Fwy, Houston 77060 | (281) 872-6645 |
| Aspect Resources Llc 1300 Main St, Houston 77002 | (713) 652-5051 |
| Atasca Resources Inc 4611 Montrose Blvd, Houston 77006 | (713) 529-5890 |
| Atlantia Offshore Ltd 1255 Enclave Pkwy 600, Houston 77077 | (281) 899-4300 |
| Atlantic Pacific Marine 2000 W Sam Houston Pkwy, Houston 77057 | (713) 783-0469 |
| Atmic Inc 2450 Fondren Rd 112, Houston 77063 | (713) 266-0322 |
| Atocha Oil & Gas 16701 Greenspoint Park Dr 280, Houston 77060 | (713) 935-0616 |
| Atp Oil & Gas Corp 4600 Post Oak Place Dr 200, Houston 77027 | (713) 622-3311 |
| Atwood Oceanics Inc 15835 Park Ten Place Dr 200, Houston 77084 | (281) 749-7800 |
| Austin Resources 3333 Allen Pkwy # 1705, Houston 77019 | (713) 533-9052 |
| Austin Resources 4265 San Felipe St, Houston 77027 | (713) 533-9052 |
| Avalon Energy Llc 350 N Sam Houston Pkwy E, Houston 77060 | (281) 931-4888 |
| Ayco Energy 16360 Park Ten Pl 115, Houston 77084 | (281) 398-4501 |
| B & S Exploration Inc 811 Dallas St 1020, Houston 77002 | (713) 650-1378 |
| Bagby & Co 3100 W Alabama St, Houston 77098 | (713) 622-1008 |
| Ballard Exploration Co 1021 Main St 2310, Houston 77002 | (713) 651-0181 |
| Kim Ballew 909 Fannin St, Houston 77010 | (713) 621-5100 |
| Bartell Exploration 5851 San Felipe St 860, Houston 77057 | (713) 781-6974 |
| Beach Energy Group 1001 Fannin St, Houston 77002 | (713) 571-6600 |
| Bellwether Exploration 1331 Lamar St, Houston 77010 | (713) 652-3018 |
| Benchmark Exploration 6420 Hillcroft St, Houston 77081 | (713) 974-2880 |
| Bettis & Snyder Llc 7700 San Felipe St, Houston 77063 | (713) 787-6002 |
| Bhp Billiton Petroleum Amer 1360 Post Oak Blvd 150, Houston 77056 | (713) 961-8500 |
| Big M Exploration Inc 5301 Bayard Ln, Houston 77005 | (713) 520-8847 |
| Bishop Petroleum Inc 3555 Timmons Ln 660, Houston 77027 | (713) 439-1119 |
| Bison Oil & Gas 4295 San Felipe St, Houston 77027 | (713) 850-8180 |
| Black & Gold Resources 3050 Post Oak Blvd, Houston 77056 | (713) 960-7161 |
| Sunoco Logistics Partners 6161 Savoy Dr 1020, Houston 77036 | (713) 942-0595 |
| Blacklake Energy 1100 Louisiana St, Houston 77002 | (713) 759-1520 |
| Black Stone Minerals Co Lp 1001 Fannin St 2020, Houston 77002 | (713) 658-0647 |
| Blade Energy Partners 15810 Park Ten Pl 100, Houston 77084 | (713) 621-9097 |
| Blakenergy 5629 Fm 1960 Rd W 360, Houston 77069 | (281) 440-7017 |
| John R Blocker 50 Briar Hollow Ln, Houston 77027 | (713) 961-4740 |
| Blue Dolphin Energy Co 801 Travis St # 2100, Houston 77002 | (713) 227-7660 |
| Bnp Petroleum 2800 Post Oak Blvd 5300, Houston 77056 | (713) 572-6400 |
| Bois D'Arc Energy Llc 600 Travis St 5200, Houston 77002 | (713) 228-0438 |
| Bos Corp 16350 Park Ten Pl, Houston 77084 | (281) 599-7110 |
| Bpz Energy Inc 580 Westlake Park Blvd 525, Houston 77079 | (281) 556-6200 |
| Bri Consulting Group Inc 511 Longwoods Ln, Houston 77024 | (713) 468-6813 |
| Brigham Oil & Gas Lp 11140 Aerospace Ave, Houston 77034 | (832) 300-8000 |
| British Gas 801 Rocky River Rd, Houston 77056 | (713) 961-0666 |
| Rebel Drilling 7700 San Felipe St, Houston 77063 | (281) 496-3141 |
| Buena Vista 410 Pierce St, Houston 77002 | (832) 476-9260 |
| Buffalo Petroleum 2304 Dunlavy St, Houston 77006 | (713) 623-6116 |
| Madison Minerals Corp 712 Main St 1700, Houston 77002 | (713) 223-5730 |
| Burlington Resources Intl 1001 Fannin St, Houston 77002 | (713) 336-6400 |
| James R Byrne 2480 Times Blvd, Houston 77005 | (713) 807-1146 |
| J E Bishop Inc 820 Gessner Rd 1460, Houston 77024 | (713) 464-3595 |
| Cabot Oil & Gas Marketing Corp 1200 Enclave Pkwy, Houston 77077 | (281) 589-4600 |
| Callon Petroleum Co 1200 Enclave Pkwy 225, Houston 77077 | (281) 589-5200 |
| Calvin Resources Inc 4151 Southwest Fwy, Houston 77027 | (713) 355-3655 |
| Camc Holdings 4669 Southwest Fwy, Houston 77027 | (713) 621-7753 |
| Cana Resources 1600 Smith St, Houston 77002 | (713) 654-1222 |
| Canadian Lone Star Oil & Gas 9333 Memorial Dr 201, Houston 77024 | (713) 956-6274 |
| Capital C Energy Llc 333 Clay St, Houston 77002 | (713) 571-9393 |
| Carlton Energy Group 952 Echo Ln 210, Houston 77024 | (713) 932-9594 |
| Carmac Energy Corp 7670 Woodway Dr 220, Houston 77063 | (713) 785-4575 |
| Carrizo Oil & Gas Inc 1000 Louisiana St # 1500, Houston 77002 | (713) 328-1000 |
| Cdx Charles Edwards 2500 Tanglewilde St, Houston 77063 | (713) 978-6503 |
| Cedyco Corp 1 Riverway 2020, Houston 77056 | (713) 993-9333 |
| Cedyco Corp 2001 Kirby Dr 917, Houston 77019 | (713) 807-1207 |
| Century Onshore Exploration Co 16945 Northchase Dr, Houston 77060 | (281) 873-8225 |
| Century Resources Inc 5851 San Felipe St, Houston 77057 | (713) 266-4344 |
| Century Royalty Llc 3 Pine Creek Ln, Houston 77055 | (713) 647-7000 |
| Cheniere Energy Operating Co 1200 Smith St # 1740, Houston 77002 | (713) 659-1361 |
| Chevron Corp 1111 Bagby St 2469, Houston 77002 | (713) 432-6400 |
| Sabine Pipeline Co 1111 Bagby St 3011, Houston 77002 | (713) 752-4046 |
| Cheyenne Petroleum Co 16801 Greenspoint Park Dr, Houston 77060 | (281) 875-6061 |
| Choctaw Corp 815 Walker St 1040, Houston 77002 | (713) 632-0222 |
| Christeve Oil Co 4422 Fm 1960 Rd W 105, Houston 77068 | (281) 580-8708 |
| Chrome Management Svc 5444 Westheimer Rd 1570, Houston 77056 | (713) 626-9300 |
| City Of Houston 10518 Bellaire Blvd, Houston 77072 | (713) 654-2442 |
| Claire's 5135 W Alabama St 6010, Houston 77056 | (713) 963-0255 |
| Clamp On Inc 15720 Park Row, Houston 77084 | (281) 492-9805 |
| Claymore Oil & Gas Lp 1001 Fannin St 777, Houston 77002 | (713) 655-9700 |
| Clk Co 5555 San Felipe St, Houston 77056 | (713) 650-6800 |
| Cml Development Inc 2020 Southwest Fwy 325, Houston 77098 | (713) 529-5888 |
| Coastline Energy Corp 1010 Lamar St 600, Houston 77002 | (713) 621-8400 |
| Cockrell Interests 1000 Main St, Houston 77002 | (713) 209-7300 |
| Concorde Resources Llc 808 Travis St, Houston 77002 | (713) 224-6854 |
| Conoco Inc 600 N Dairy Ashford St, Houston 77079 | (281) 293-1000 |
| Constellation Partners Inc 16203 Park Row 185, Houston 77084 | (281) 829-9377 |
| Contango Oil & Gas Co 3700 Buffalo Speedway 960, Houston 77098 | (713) 960-1901 |
| Contour Energy Co 1001 Mckinney St 900, Houston 77002 | (713) 652-5200 |
| Convergent Energy Group 1201 Prince St, Houston 77008 | (713) 683-9969 |
| Copano Energy Llc 2727 Allen Pkwy # 1200, Houston 77019 | (713) 621-9547 |
| Cornerstone Energy 12941 North Fwy 333, Houston 77060 | (281) 872-9700 |
| Corum Production Co 9039 Katy Fwy 240, Houston 77024 | (713) 973-0525 |
| Crawford Energy Inc 770 S Post Oak Ln 520, Houston 77056 | (713) 626-2637 |
| Cox & Perkins Explorations Inc 5847 San Felipe St 700, Houston 77057 | (713) 783-7880 |
| Csa Exploration Co 2610 Sage Rd, Houston 77056 | (713) 622-5080 |
| Cutler Explorations Inc 3911 W Main St, Houston 77027 | (713) 960-8866 |
| Cyclone Exploration Inc 16815 Royal Crest Dr 190, Houston 77058 | (281) 280-0941 |
| Cymraec Exploration Inc 350 N Sam Houston Pkwy E 110, Houston 77060 | (281) 999-5050 |
| Cypress Consulting 6622 Willow Brook Park, Houston 77066 | (281) 955-9290 |
| D M Assoc 3224 Timmons Ln, Houston 77027 | (713) 621-3802 |
| Dan A Hughes Co 1100 Louisiana St, Houston 77002 | (713) 759-1769 |
| Daniel Wolf Oil Properties 700 Louisiana St 1100, Houston 77002 | (713) 650-3330 |
| Harris P Darcy 2500 Tanglewilde St, Houston 77063 | (713) 460-4292 |
| Steve Davidson 14505 Torrey Chase Blvd, Houston 77014 | (281) 866-0828 |
| Davis Gulf Coast Inc 1 Riverway # 2020, Houston 77056 | (713) 572-3761 |
| Davis Offshore 1360 Post Oak Blvd, Houston 77056 | (713) 933-0064 |
| Daystar Oil & Gas Corp 1120 Nasa Rd 1, Houston 77058 | (281) 333-9373 |
| Decker Exploration Inc 1111 Bagby St 2320, Houston 77002 | (713) 759-1925 |
| Delta Petroleum Corp 12 E Greenway Plz 1010, Houston 77046 | (713) 877-1214 |
| Denali Oil & Gas Mgmt Llc 650 N Sam Houston Pkwy E, Houston 77060 | (281) 847-1888 |
| Dernick Resources Inc 14340 Torrey Chase Blvd, Houston 77014 | (281) 444-9440 |
| Desco Oil Co 2200 Post Oak Blvd # 525, Houston 77056 | (713) 961-4233 |
| Devon Energy Corp 1200 Smith St, Houston 77002 | (713) 286-5700 |
| Devon Energy Retirement Svc 15425 International Plaza Dr, Houston 77032 | (281) 227-6000 |
| Dgh Petroleum Inc 2000 S Dairy Ashford St 640, Houston 77077 | (281) 759-9800 |
| Diasu Oil & Gas Co Inc 4201 Fm 1960 Rd W 400, Houston 77068 | (281) 537-2035 |
| Dillco Co 450 Gears Rd 290, Houston 77067 | (281) 873-6100 |
| Dimension Energy Co 1010 Lamar St 720, Houston 77002 | (713) 651-1588 |
| Domain Energy 16801 Greenspoint Park Dr, Houston 77060 | (281) 618-1800 |
| Dominion Energy & Minerals 1301 Travis St, Houston 77002 | (713) 658-0537 |
| Dominion Exploration & Prdctn 1415 Louisiana St 2700, Houston 77002 | (713) 756-6000 |
| Dominion Exploration & Prdctn 16945 Northchase Dr 1750, Houston 77060 | (281) 873-1500 |
| Dominion Minerals Corp 14511 Falling Creek Dr 200, Houston 77014 | (281) 397-0091 |
| Double Star Energy 7751 San Felipe St, Houston 77063 | (713) 334-3306 |
| Dover Technology Inc 14420 Westway Ln, Houston 77077 | (281) 531-7361 |
| Drill Mar 801 Travis St 2100, Houston 77002 | (713) 221-1768 |
| Drillinginfo Inc 2929 Allen Pkwy 1520, Houston 77019 | (713) 533-0679 |
| Dubai Natural Gas 2700 Greens Rd E400, Houston 77032 | (281) 449-5557 |
| Duncan Oil Co 3 Riverway # 1270, Houston 77056 | (713) 840-8755 |
| E Seis Inc 1155 Dairy Ashford St, Houston 77079 | (281) 531-1447 |
| Easyread Data Svc 3311 Richmond Ave 228, Houston 77098 | (713) 528-6887 |
| Edge Petroleum Operating Co 1301 Travis St 2000, Houston 77002 | (713) 654-8960 |
| Elf Exploration 800 Gessner Rd, Houston 77024 | (832) 657-0603 |
| Eminent Oil & Gas Inc 2310 W Lane Dr, Houston 77027 | (713) 623-8360 |
| Empresaenergy 9821 Katy Fwy 910, Houston 77024 | (713) 468-4832 |
| En Development Co Inc 2425 Fountain View Dr, Houston 77057 | (713) 977-4662 |
| Encana Gulf Of Mexico 1616 S Voss Rd, Houston 77057 | (832) 204-1300 |
| Endeavor Natural Gas 1201 Louisiana St, Houston 77002 | (713) 658-8555 |
| Energy Developments Inc 7700 San Felipe St 480, Houston 77063 | (713) 781-5353 |
| Energy Group Usa Houston 77021 | (713) 440-8866 |
| Energy Industries Council 11490 Westheimer Rd 850, Houston 77077 | (713) 783-1200 |
| Energy Partners Ltd 700 Louisiana St 2100, Houston 77002 | (713) 228-0711 |
| Energy Quest Llc 15425 North Fwy, Houston 77090 | (281) 875-6200 |
| Energy Reserves Group Llc 1100 Louisiana St, Houston 77002 | (713) 659-7800 |
| Enervest Management Partners 1001 Fannin St 800, Houston 77002 | (713) 659-3500 |
| Enline Resources Lp 2001 Kirby Dr 1240, Houston 77019 | (713) 521-1600 |
| Ensley Properties Inc 550 Post Oak Blvd 540, Houston 77027 | (713) 622-7332 |
| Entre Holdings Co 1001 Fannin St, Houston 77002 | (713) 759-9929 |
| Eog Resources Inc 1200 Smith St, Houston 77002 | (713) 651-7000 |
| Robert Epple 11757 Katy Fwy, Houston 77079 | (281) 556-1250 |
| Eps Americas Inc 16430 Park Ten Pl # 635, Houston 77084 | (281) 599-1900 |
| Equitable Production Co 5555 San Felipe St # 2100, Houston 77056 | (713) 548-2000 |
| Erhc 5444 Westheimer Rd 1570, Houston 77056 | (713) 626-4700 |
| Eri Supply & Logistics 5555 San Felipe St # 2100, Houston 77056 | (713) 622-8218 |
| Erskine Energy Llc 11700 Old Katy Rd 1200, Houston 77079 | (713) 974-3322 |
| Escopeta Production Co 5005 Riverway Dr 440, Houston 77056 | (713) 623-6301 |
| Evergreen Energy 2802 Ferndale St, Houston 77098 | (713) 522-8688 |
| Exploration Geopsychics Inc 3000 Weslayan St, Houston 77027 | (713) 212-3113 |
| Extex Production 5065 Westheimer Rd 625, Houston 77056 | (713) 953-0824 |
| Exxon Company U S A 800 Bell St, Houston 77002 | (713) 656-3000 |
| F Neil Rucker Oil & Gas 5005 Riverway Dr, Houston 77056 | (713) 960-0179 |
| F W Oil Interest 9821 Katy Fwy 1050, Houston 77024 | (713) 461-7221 |
| Fairway Energy 10120 Northwest Fwy, Houston 77092 | (713) 688-6871 |
| Falcon Seaboard Svc 109 N Post Oak Ln # 540, Houston 77024 | (713) 622-0055 |
| Famcor Oil Inc 7887 San Felipe St 250, Houston 77063 | (713) 974-0002 |
| G Don Fennell Houston 77054 | (713) 578-8996 |
| Fidelity Exploration & Prodctn 440 Louisiana St, Houston 77002 | (713) 236-7752 |
| Jesse E Filgo 5850 San Felipe St, Houston 77057 | (713) 789-2464 |
| First Reserve Oil & Gas 600 Travis St, Houston 77002 | (713) 227-7884 |
| Flare Resources Inc 820 Gessner Rd # 1375, Houston 77024 | (713) 650-1820 |
| Foster & Assoc 675 Bering Dr 800, Houston 77057 | (713) 266-2883 |
| Frazier Resource Co 800 Bering Dr 130, Houston 77057 | (713) 782-5847 |
| Tom L Hail 1201 Louisiana St, Houston 77002 | (713) 658-8590 |
| W R Rusty Howard 5615 Kirby Dr 920, Houston 77005 | (713) 526-4974 |
| Mission Resources Corp 1331 Lamar St # 1455, Houston 77010 | (713) 495-3000 |
| Mlc Enterprises Inc 5931 Bayou Glen Rd, Houston 77057 | (713) 785-1979 |
| Momentum Cachet Production 600 Jefferson St, Houston 77002 | (713) 658-2820 |
| Fuji Resources 5623 Hillcroft St, Houston 77036 | (713) 781-3854 |
| John D Fulton 9222 Benning Dr, Houston 77031 | (713) 272-7914 |
| Future Petroleum Corp 1980 Post Oak Blvd, Houston 77056 | (713) 993-0774 |
| Midcon Offshore Inc 12450 Greenspoint Dr 1100, Houston 77060 | (281) 874-2161 |
| Middleton Office 4265 San Felipe St 490, Houston 77027 | (713) 621-1915 |
| Midstates Petroleum 2500 Tanglewilde St 300, Houston 77063 | (713) 935-9661 |
| Mieco Inc 16945 Northchase Dr, Houston 77060 | (281) 872-1722 |
| Minerex 1021 Main St, Houston 77002 | (713) 654-7024 |
| Minerex Corp 1600 Smith St, Houston 77002 | (713) 650-0500 |
| Gaffney-Kroese Supply Corp 14149 Interdrive W, Houston 77032 | (281) 449-5000 |
| Galisteo Energy Llc 1415 Louisiana St, Houston 77002 | (713) 654-4988 |
| Gallant Energy Inc 1319 W Vistawood, Houston 77077 | (281) 216-2518 |
| Garrett Petrochemicals 344 Harvard St, Houston 77007 | (713) 880-0810 |
| Merichem Co 1503 Central St, Houston 77012 | (713) 428-5300 |
| Meridian Resource Corp 1401 Enclave Pkwy 300, Houston 77077 | (281) 597-7000 |
| Louisiana Onshore Properties 1401 Enclave Pkwy 300, Houston 77077 | (281) 558-8080 |
| Merlon Petroleum Co Inc 3 Riverway, Houston 77056 | (713) 365-9936 |
| Merlon Petroleum Co Inc 8584 Katy Fwy, Houston 77024 | (713) 365-9936 |
| Mewbourne Oil Co 3303 Fm 1960 Rd W, Houston 77068 | (281) 580-6608 |
| Michael E Brennan & Assoc 808 Travis St 1414, Houston 77002 | (713) 223-5263 |
| Michel Bechtel Exploration Co 2121 Sage Rd 165, Houston 77056 | (713) 963-8160 |
| Michel Halbouty Energy Co 7035 W Tidwell Rd 109, Houston 77092 | (713) 622-1130 |
| Gec Operating Inc 952 Echo Ln 380, Houston 77024 | (713) 463-6930 |
| Geco-Prakla 1325 S Dairy Ashford St, Houston 77077 | (713) 870-1880 |
| Genesis Producing Co 10000 Memorial Dr 150, Houston 77024 | (713) 290-8866 |
| Geo Texture Technologies 430 Highway 6 S 212, Houston 77079 | (281) 531-7200 |
| Geo-Wise Inc 7700 San Felipe St 106, Houston 77063 | (713) 978-7631 |
| Geo Met Inc 909 Fannin St 3208, Houston 77010 | (713) 659-3855 |
| Geoquest 5599 San Felipe St, Houston 77056 | (713) 621-1165 |
| Georex Logistics 16430 Park Ten Pl, Houston 77084 | (281) 646-2400 |
| George L Mc Leod Inc 11221 Katy Fwy 115, Houston 77079 | (713) 464-8900 |
| Getz Exploration Consultants 4130 Marlowe St, Houston 77005 | (713) 432-0824 |
| Menard Energy Corp 800 Bering Dr, Houston 77057 | (713) 266-9914 |
| Glickenhaus Energy 17 S Briar Hollow Ln, Houston 77027 | (713) 225-4400 |
| Global Energy Consultants 7500 San Felipe St, Houston 77063 | (713) 914-8129 |
| Global Petrotech Inc 16350 Park Ten Pl 100-, Houston 77084 | (281) 398-9398 |
| Global-Texneft 5300 Memorial Dr, Houston 77007 | (713) 880-2683 |
| Globe Exploration Svc Llc 10630 Haddington Dr, Houston 77043 | (713) 784-2906 |
| Mayne & Mertz Inc 24 E Greenway Plz 605, Houston 77046 | (713) 963-0031 |
| Mc Allen Oil & Gas 2020 Commerce St, Houston 77002 | (713) 222-2980 |
| Mc Allen Oil & Gas 2409 Commerce St, Houston 77003 | (713) 222-1071 |
| Mc Carthy Oil & Gas Corp 1770 Saint James Pl 420, Houston 77056 | (713) 781-4992 |
| Mc Murrey Exploration 4039 Piping Rock Ln, Houston 77027 | (713) 629-7342 |
| Mc Rae Energy 7904 N Sam Houston Pkwy W 310, Houston 77064 | (713) 785-4144 |
| Goldking Energy Corp 777 Walker St, Houston 77002 | (713) 228-5464 |
| Goldrus Drilling Co 17350 State Highway 249 140, Houston 77064 | (281) 807-6114 |
| Goodrich Petroleum Corp 808 Travis St 1320, Houston 77002 | (713) 780-9494 |
| Gordon Exploration 9800 Centre Pkwy, Houston 77036 | (713) 270-9700 |
| Marubeni Oil & Gas Usa Inc 777 N Eldridge Pkwy 270, Houston 77079 | (832) 379-1100 |
| Mason Exploration Co 503 Timber Terrace Rd, Houston 77024 | (713) 686-7094 |
| Mast Energy Co Llc 13131 Champions Dr, Houston 77069 | (281) 397-6798 |
| Greenbriar Partners 3414 Eastside St, Houston 77098 | (713) 529-9782 |
| Marconi Exploration Inc 5521 Briar Dr, Houston 77056 | (713) 627-1220 |
| Marquee Corp 815 Walker St 1442, Houston 77002 | (713) 222-7706 |
| Greystone Petroleum Inc 1616 S Voss Rd 801, Houston 77057 | (713) 781-0806 |
| Grimes Energy 11 E Greenway Plz 2902, Houston 77046 | (713) 651-7855 |
| Gryphon Exploration Co 1200 Smith St # 1700, Houston 77002 | (713) 571-1800 |
| Gulf Energy Management Co 580 Westlake Park Blvd # 600, Houston 77079 | (281) 504-4000 |
| Gulfsands Petroleum Ltd 5718 Westheimer Rd, Houston 77057 | (713) 626-9564 |
| Crimson Exploration Inc 480 N Sam Houston Pkwy E 300, Houston 77060 | (281) 820-1919 |
| Mabon Limited 16300 Katy Fwy, Houston 77094 | (281) 647-9036 |
| Magnastar Energy 1120 Nasa Rd 1, Houston 77058 | (281) 335-0119 |
| Magnum Producing & Operating 6701 Pinemont Dr, Houston 77092 | (713) 462-2388 |
| Main Energy Inc 10777 Northwest Fwy 420, Houston 77092 | (713) 759-1144 |
| Gusto Msc 1255 Enclave Pkwy, Houston 77077 | (281) 679-8000 |
| Lyas Inc 1980 Post Oak Blvd 1850, Houston 77056 | (713) 888-0773 |
| Md Petroleum 11111 Katy Fwy 530, Houston 77079 | (713) 647-8772 |
| Halex Oil Corp 1503 Briarmead Dr, Houston 77057 | (713) 850-1220 |
| Hall Partners Lp 4605 Post Oak Place Dr 100, Houston 77027 | (713) 333-0973 |
| Hallwood Energy Corp 1010 Lamar St, Houston 77002 | (713) 654-9180 |
| Hamill Foundation 1160 Dairy Ashford St, Houston 77079 | (281) 556-9581 |
| Hankey Oil Co 4265 San Felipe St 1050, Houston 77027 | (713) 960-9795 |
| Har Cor Energy Inc 5 Post Oak Cir, Houston 77024 | (713) 961-1804 |
| Lone Star Production Co 2400 Augusta Dr, Houston 77057 | (713) 784-7474 |
| Lone Wolf Petroleum Inc 11211 Katy Fwy 300, Houston 77079 | (713) 722-7834 |
| Louisiana Dept-Natural Rsrce 5177 Richmond Ave, Houston 77056 | (832) 203-1204 |
| Lourdes Express 7555 Long Point Rd # C, Houston 77055 | (713) 681-5138 |
| Lubanko Oil Co 5925 Kirby Dr, Houston 77005 | (713) 522-4668 |
| Harrison Interest 707 Travis St, Houston 77002 | (713) 632-1300 |
| Harvest Natural Resources Inc 1177 Enclave Pkwy 300, Houston 77077 | (281) 899-5700 |
| Hauck Exploration Inc 12203 Taylorcrest Rd, Houston 77024 | (713) 973-7963 |
| Hawkeye Stratagrahic Inc 1010 Lamar St, Houston 77002 | (713) 951-0096 |
| Link Project Svc 11111 Katy Fwy, Houston 77079 | (713) 973-5748 |
| Links Group 14235 Indian Wells Dr, Houston 77069 | (281) 440-4008 |
| Live Oak 2727 Allen Pkwy 1200, Houston 77019 | (713) 621-4651 |
| Lively Exploration 2450 Fondren Rd 260, Houston 77063 | (713) 840-1905 |
| Ljm Corp 2727 Allen Pkwy 1650, Houston 77019 | (713) 526-4171 |
| Lng Partners 4400 Post Oak Pkwy 1200, Houston 77027 | (713) 623-2800 |
| Heritage Exploration Co Inc 921 Main St, Houston 77002 | (713) 759-9387 |
| Highland Resources Inc 1001 Fannin St 4700, Houston 77002 | (713) 652-4901 |
| Lava Exploration 2627 Kipling St, Houston 77098 | (713) 523-2928 |
| Leadingsoft Corp 5307 Saint George Square Ln, Houston 77056 | (713) 661-9709 |
| Lee Hite & Wisda 5005 Woodway Dr, Houston 77056 | (713) 629-5150 |
| Lee Lance & Co 9219 Katy Fwy 250, Houston 77024 | (713) 973-2230 |
| Legend Petroleum 111 N Ennis St, Houston 77003 | (713) 225-1060 |
| Holland Exploration Inc 1054 Bayou Island Dr, Houston 77063 | (832) 251-2811 |
| Labrador Energy Inc 952 Echo Ln, Houston 77024 | (713) 467-6389 |
| Touchstone Resources 1600 Smith St 5100, Houston 77002 | (713) 784-1113 |
| Laahnz Corp 6223 Richmond Ave, Houston 77057 | (713) 467-2520 |
| Horton Petroleum Corp 4545 Post Oak Place Dr, Houston 77027 | (713) 965-9211 |
| Houff Exploration Co 811 Dallas St 1430, Houston 77002 | (713) 652-9626 |
| Houston American Energy Corp 801 Travis St, Houston 77002 | (713) 222-6966 |
| Houston Energy Lp 1415 Louisiana St 2400, Houston 77002 | (713) 650-8008 |
| Kona Limited 16800 Imperial Valley Dr, Houston 77060 | (281) 445-5757 |
| Krescent Energy Co 5005 Riverway Dr, Houston 77056 | (713) 993-0000 |
| Kriti Exploration Inc 1010 Lamar St 750, Houston 77002 | (713) 655-7070 |
| Krystal-Lin Energy Inc 3845 Fm 1960 Rd W 250, Houston 77068 | (281) 537-8925 |
| Houston Exploration Co 1100 Louisiana St 2000, Houston 77002 | (713) 830-6800 |
| Houston International Cnsltng 975 Corbindale Rd, Houston 77024 | (713) 461-5531 |
| Houston Mark 1 Properties 952 Echo Ln 425, Houston 77024 | (713) 722-8880 |
| King Brandt & Assoc 13523 Braeswest Dr, Houston 77082 | (281) 493-0063 |
| King Ranch Inc 1415 Louisiana St, Houston 77002 | (713) 752-5700 |
| Huber Energy Svc 1100 Louisiana St, Houston 77002 | (713) 655-0189 |
| Huffco Group Inc 700 Louisiana St, Houston 77002 | (713) 753-1000 |
| Hunt Petroleum Aec Inc 1 Riverway 700, Houston 77056 | (713) 871-3400 |
| Hurd Enterprises Ltd 1010 Lamar St 1640, Houston 77002 | (713) 659-6444 |
| Kamel Corp 4550 Post Oak Place Dr 249, Houston 77027 | (713) 960-0769 |
| Karbuhn Oil Co 14300 Cornerstone Village Dr, Houston 77014 | (281) 583-9700 |
| Kcs Resources Inc 5555 San Felipe St, Houston 77056 | (713) 877-8006 |
| Kelso Oil Llc 2630 Fountain View Dr # 102, Houston 77057 | (713) 785-4714 |
| Hyperdynamics Corp 9700 Bissonnet St 1700, Houston 77036 | (713) 353-9400 |
| Kerr-Mc Gee Oil & Gas Corp 16666 Northchase Dr, Houston 77060 | (281) 673-6000 |
| Indian Creek Ventures 6227 Lymbar Dr, Houston 77096 | (713) 771-9117 |
| Indophil International Svc 1360 Post Oak Blvd 1590, Houston 77056 | (713) 871-1231 |
| Frank N Ingraham 6363 Woodway Dr 860, Houston 77057 | (713) 266-7122 |
| Jos Energy Corp 8584 Katy Fwy 417, Houston 77024 | (713) 365-9783 |
| Josey Oil Co 2001 Kirby Dr 1002, Houston 77019 | (713) 521-5828 |
| Journey Oil & Gas 1201 Louisiana St 1040, Houston 77002 | (713) 655-0595 |
| Joy Resources Inc 3131 Eastside St, Houston 77098 | (713) 807-1056 |
| Interactive Exploration Inc 1980 Post Oak Blvd 2050, Houston 77056 | (713) 993-0676 |
| Jog Corp 14825 Saint Marys Ln, Houston 77079 | (281) 679-7333 |
| Iota 12941 North Fwy, Houston 77060 | (281) 248-4682 |
| Ipact 1120 Nasa Rd 1, Houston 77058 | (281) 333-8190 |
| Isramco Inc 11767 Katy Fwy, Houston 77079 | (713) 621-3882 |
| Itf Energy Partners 16360 Park Ten Pl, Houston 77084 | (281) 398-6550 |
| J C Sorensen Partners 9821 Katy Fwy, Houston 77024 | (713) 468-9933 |
| Jogmec 1 Riverway, Houston 77056 | (713) 622-0204 |
| Jesse L Dally & Assoc 7815 Colony Point Ct, Houston 77095 | (281) 463-7819 |
| Jewell Energy Partners Ltd 1199 Nasa Rd 1 # 102, Houston 77058 | (281) 480-8868 |
| J L Allen Exploration Ventures 1 E Greenway Plz 440, Houston 77046 | (713) 871-2350 |
| J O Easley Inc 5615 Nw Central Dr, Houston 77092 | (713) 460-1613 |
| Jaguar Exploration Inc 1155 Dairy Ashford St 610, Houston 77079 | (281) 920-2668 |
| Horizon Exploration Co 2727 Allen Pkwy 1900, Houston 77019 | (713) 522-5800 |
| George Mejlander 5005 Woodway Dr, Houston 77056 | (713) 465-3007 |
| Charles M Mc Cann 7670 Woodway Dr 170, Houston 77063 | (713) 789-3140 |
| Bruce M Mc Intyre 2620 Fountain View Dr 280, Houston 77057 | (713) 783-5080 |
| Moran Resources Co 2803 Sackett St, Houston 77098 | (713) 526-5577 |
| Morrow Exploration Corp 1177 West Loop S 1450, Houston 77027 | (713) 621-2777 |
| Mosaic Resources 4265 San Felipe St, Houston 77027 | (713) 968-9825 |
| Shell Pipe Line Corp 910 Louisiana St, Houston 77002 | (713) 241-6161 |
| Enpal Lc 601 Jefferson St 3690, Houston 77002 | (713) 651-8006 |
| Murex Petroleum Corp 515 N Sam Houston Pkwy E, Houston 77060 | (281) 590-3313 |
| Murphy Exploration & Prod Co 550 Westlake Park Blvd 1000, Houston 77079 | (281) 249-1040 |
| Muskeg Oil & Gas 952 Echo Ln, Houston 77024 | (713) 622-0778 |
| Natural Gas System Inc 820 Gessner Rd, Houston 77024 | (713) 935-0122 |
| Nehi Petroleum Corp 13700 Veterans Memorial Dr, Houston 77014 | (281) 583-1280 |
| Nettlecombe Oil Co 811 Dallas St 1036, Houston 77002 | (713) 652-4040 |
| New Century Exploration Inc 17350 State Highway 249 300, Houston 77064 | (281) 664-7000 |
| Newfield Exploration Co 363 N Sam Houston Pkwy E 2020, Houston 77060 | (281) 847-6000 |
| Newgulf Exploration Lp 2828 Bammel Ln, Houston 77098 | (713) 524-2090 |
| Nixon Digital Logs 9525 Katy Fwy # 422, Houston 77024 | (713) 647-8405 |
| Noble Downhole Technology 10511 Fallstone Rd, Houston 77099 | (281) 495-1200 |
| Noble Energy Inc Onshore 12600 Northborough Dr 250, Houston 77067 | (281) 872-3100 |
| Non-Pub Houston 77010 | (713) 651-0506 |
| Nordico Energy 2950 North Loop W, Houston 77092 | (713) 341-7570 |
| Norman W Forest Geophysical 12002 Merewood Ln, Houston 77071 | (713) 995-8629 |
| Normand Oil & Gas 5629 Fm 1960 Rd W # 311, Houston 77069 | (281) 444-5606 |
| Norsk Hydro E & P Americas 15995 N Barkers Landing Rd, Houston 77079 | (281) 920-5163 |
| North American Resources 1 E Greenway Plz 900, Houston 77046 | (713) 626-5357 |