By 10â12 million years ago, the hyena family had split into two distinct groups; that of the dog-like hyenas and the bone-crushing hyenas. The arrival of the ancestral bone-crushing hyenas coincided with the decline of the similarly built but unrelated Percrocutidae family.
Whiting Petroleum Corporation is a Denver-based oil and gas exploration and production company. The company focuses on exploitation of lower risk properties, primarily on those located in the Gulf Coast, Permian Basin, Rocky Mountains, Michigan and Mid-Continent regions of the United States.
From Wikipedia, the free encyclopedia. Associated petroleum gas (APG), or associated gas, is a form of natural gas which is found with deposits of petroleum, either dissolved in the oil or as a free gas cap above the oil in the reservoir.Historically, this type of gas was released as a waste product from the petroleum extraction industry.It may be a stranded gas reserve due to the remote location of the oil field, either at sea or on land, this gas is simply burnt off in gas flares.When this occurs the gas is referred to as flare gas.istorically, this type of gas was released as a waste product from the petroleum extraction industry. It may be a stranded gas reserve due to the remote location of the oil field, either at sea or on land, this gas is simply burnt off in gas flares. When this occurs the gas is referred to as flare gas.