| Company | Category | Area | Address | Web | E-mail | Contact person |
| HYDROCARBON HORIZONS INC | Oil & Gas Exploration & Develo | Texas | 600 LEOPARD ST STE 1724, CRP CHRISTI, Nueces, Texas, 78473-1109, USA |
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Brian Calhoun |
| HYDROCARBON INVESTMENTS INC | Oil Well Drilling | Indiana | 1015 MAIN ST # A, EVANSVILLE, Vanderburgh, Indiana, 47708-1824, USA |
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Craig Kendall |
| HYDROCARBON LAND SERVICE INC | Security Broker/dealer | Arkansas | PO BOX 501, PERRYVILLE, Perry, Arkansas, 72126-0501, USA |
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David Doughty |
| HYDROCARBON MONITORING | Entertainers, Bands | Florida | 7105 SANTA CLARA BLVD, FORT PIERCE, St. Lucie, Florida, 34951-5213, USA |
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WILLIAM MARTIN |
| HYDROCARBON MONITORING | Environmental & Ecological Ser | Florida | 7105 SANTA CLARA BLVD, FORT PIERCE, St Lucie, Florida, 34951-5213, USA |
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William Martin |
| HYDROCARBON MUD LOGGING | oil/gas field services | Texas | PO BOX 1087, ROCKSPRINGS, Edwards, Texas, 78880-1087, USA |
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Teresa Sweeten |
| HYDROCARBON MUDLOGGING INC | Oil Field Service | Texas | PO BOX 1087, ROCKSPRINGS, Edwards, Texas, 78880-1087, USA |
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| HYDROCARBON PUBLISHING CO | Publishers | Pennsylvania | 270 LANCASTER AVE, FRAZER, Chester, Pennsylvania, 19355-1858, USA |
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| HYDROCARBON RECOVERY EQUIPMENT | mfg ground water treatment equ | Texas | PO BOX 16214, LUBBOCK, Lubbock, Texas, 79490-6214, USA |
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Kevin Laughlin |
| HYDROCARBON RECOVERY EQUIPMENT | mfg ground water treatment equ | Texas | PO BOX 16214, LUBBOCK, Lubbock, Texas, 79490-6214, USA |
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Kevin Laughlin |
