In the week ending July 27, Schlumberger (SLB) rose 1.4%. In comparison, the Energy Select Sector SPDR ETF (XLE), which tracks an index of US energy companies, increased 2.3% since July 20. SLB outperformed the VanEck Vectors Oil Services ETF (OIH), which tracks an index of 25 oilfield equipment and service (or OFS) companies, which rose 0.7%. The SPDR S&P 500 ETF (SPY) increased 0.6%, while the SPDR S&P Oil & Gas Equipment & Services ETF (XES) increased 1.3%. Schlumberger accounts for 0.39% of SPY.