ONI OC OBER 1984 EXPLORA ION DR D is 43-8790 N vvåhat's · 2017-11-13 · World Oil OCTOBER...
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ONI OC OBER 1984 EXPLORA ION DR D is 43-8790 N vvåhat's · 2017-11-13 · World Oil OCTOBER 1984 VOL. 199 NO. 5 DRILLING '84 DEPARTMENTS 55 60 64 69 75 Drilling innovations continue