According to the ETF Finder at ETF Channel, DO and MCHP collectively make up 10.90% of the Vanguard Mid-Cap ETF (VO) which is relatively unchanged on the day Thursday.
Oil prices were boosted today following a larger-than-expected decrease in U.S. crude supplies.
The company has a relatively young, high-spec rig fleet and 50 years' experience drilling shallow-to-ultra-deepwater wells for explorers and producers, particularly internationally.
Growing crude supplies and continued aggressive drilling globally are negative signs for energy stocks.
Diamond Offshore, Noble, Transocean and Tidewater are deep in bear market territory.