The oil and gas industry has had a rough ride since the oil price downturn of 2014. Over the past five years, the Energy Select Sector SPDR ETF (XLE), which represents the largest energy companies in the S&P 500, has fallen by 25%. The S&P Oil & Gas Exploration & Production SPDR ETF (XOP), representative of the smaller-cap drillers, is down 56% over the same time frame.
These declines took place during a time that the S&P 500 index rose by about 50%. The energy sector makes up just over 4% of the S&P 500 today. A decade ago, spurred by $100/bbl oil, the energy sector comprised over 14% of the S&P 500.