LAS of top of oil derrick, TILT DOWN to base. Shot of crew at work. Shot of block coming down taken from top of derrick. Sequence showing roughnecks screwing lengths of pipe, of pipe being lowered into drill hole by derrick block. HAS of roughneck at top of derrick swinging ninety foot lengths of pipe into holder, of block, holder and pipe going down at high speed rate. CU of bearing rotating at high speed, of fluctuating gauge. CU, MS of men screwing bit onto lower end of pipe. Shots throughout this section of operation of oil derrick taken from interesting angles.