As you take more oil out, the rock bearing the oil begins to collapse. Think of the pressures thousands of feet below the ground and hundreds of feet beneath the water.
UH OH! <img src="http://www.catsailor.com/forums/images/graemlins/shocked.gif" alt="" /> Does this mean that once the worlds oil supply is depleted, the earth will collapse in upon itself! <img src="http://www.catsailor.com/forums/images/graemlins/confused.gif" alt="" /> Another reason to seek alternatives! <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />
