No industry I have ever seen is less innovative than the oil and gas industry. After spending decades in it I am truly amazed that I can drive to any gas station and just pump gasoline into my car. The industry is slow to adapt and once it does, it slavishly follows the leaders like sheep.
It may track the steady improvement in technology and processes that accompanied the early oil drilling business. In the latter decades of the 19th century, western Pennsylvania produced the first oil boom. In the earlier years, half the oil was lost or wasted, driving constant improvements to maximize returns.