For years, the focus of the oil industry was on growing production no matter the cost. Drillers would spend everything that came in -- and then some -- to drill new wells. This approach had disastrous consequences because it ultimately drove oil supplies well past demand, causing prices to crash, which made it hard for oil companies to keep up with the debt they incurred to juice growth.However, thanks to a small handful of oil companies led by EOG Resources (NYSE: EOG) and ConocoPhillips (NYSE: COP), those days of growing just to grow are long gone.