Bloomberg: New rules governing oil and gas extraction in Colorado may increase the review period for permits and add to a backlog of well applications as energy exploration proceeds at a pace to eclipse last years record. The new regulations by the Colorado Oil and Gas Conservation Commission, which went into effect Aug. 1, would require wells to be at least 500 feet (152 meters) from the nearest occupied building and mandate pre-drilling notice for nearby landowners and measures to reduce noise, odors, dust...