Mud sample analysis under ultraviolet light, in a mud lab aboard a land based drilling rig.

RELATED KEYWORDS: economy; economics; American; national; supply; demand; shortage; raw; oil; gas; petroleum; fossil; fuels; fuel; energy; earth; resources; exploration; exploring; discover; discovery; discovering; drill; drilling; operations; land; based; completion; and; job; jobs; skill; skilled; labor; laboring; men; people; work; workers; working; occupational; occupation; occupations; employers; employment; independent; independents; producers; safety; OSHA; environmental; protection; EPA; danger; dangerous; risk; hazards; hazardous; hazard; high; industry; industrial; economy; economies; economic; image; images; photograph; photo; picture; stock; pix; pics