This is an oil pump jack. It it a very large drill attached to a platform by a pole. This creates a fulcrum that moves the drill head up and down, pumping the oil from inside the Earth to the surface. It has a counter-balance on the right hand side of it in order to drive the motion of the jack.
This Oil Pump icon is a responsive icon. This means that it's optimized for four resolutions, from tiny 16x16 until highly detailed 80x80. The style comes from the latest Microsoft Office
, which makes it perfect for any Windows applications, in particular, those with ribbon toolbar control. Unlike other icon packs that have merely hundreds of icons, this monster icon pack contains 16,000 icons, all in the same style and quality.