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Service contractor, Logging, and Digitizing Company Codes
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1
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Operator
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2
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Driller
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3
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Mud Logger
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10
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Analyst, The
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20
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Baroid
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30
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Birdwell
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40
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BPB
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50
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Brett Exploration
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60
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Cardinal
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70
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Century Geophysical
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80
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Charlene Well Surveying
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90
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Compagnie de Services Numerique
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95
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Comprobe
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100
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Computer Data Processors
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110
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Computrex
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120
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Core Lab
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125
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CRC Wireline, Inc.
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130
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Digigraph
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140
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Digitech
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145
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Deines Perforating
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150
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Dresser Atlas
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160
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Earthworm Drilling
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170
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Electronic Logging Company
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180
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Elgen
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190
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El Toro
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200
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Empire
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210
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Frontier
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215
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Geolog
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220
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G O International
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230
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Gravilog
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240
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Great Guns Servicing
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250
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Great Lakes Petroleum Services
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260
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GTS
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270
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Guns
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280
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Halliburton
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285
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Horizon Production Logging
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290
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Husky
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300
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Jetwell
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310
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Lane Wells
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320
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Magnolia
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330
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McCullough Tool
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340
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Pan Geo Atlas
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345
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Perfco
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350
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Perfojet Services
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360
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Perforating Guns of Canada
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370
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Petroleum Information
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380
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Petrophysics
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390
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Pioneer
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395
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Q.C. Data Collectors, Ltd.
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400
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Ram Guns
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410
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Riley's Datashare
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420
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Roke
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430
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Sand Survey
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440
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Schlumberger
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450
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Scientific Software
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460
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Seismography Service
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470
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Triangle
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480
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Welex
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490
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Well Reconnaissance
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500
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Well Surveys
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510
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Western
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520
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Westronics
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525
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Winters Wireline
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530
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Wireline Electronics
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540
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Worth Well
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