RATINGS CHANGES

Centennial Resource Development (CDEV - Get Report) was initiated with a buy rating and $24 price target at Stifel. 

Callon Petroleum (CPE - Get Report) was initiated with a buy rating and $21 price target at Stifel. 

Concho Resources (CXO - Get Report) was named a top pick at Stifel, as analysts initiated the stock with a buy rating and $206 price target. 

Devon Energy (DVN - Get Report) was initiated with a buy rating and $73 price target at Stifel. 

Diamondback Energy (FANG - Get Report) was initiated with a buy rating and $123 price target at Stifel. 

Keane Group (FRAC - Get Report) was initiated with a market perform rating at BMO. 

Marathon Oil (MRO - Get Report) was initiated with a hold rating and $17 price target at BMO. 

QEP (QEP - Get Report) was initiated with a buy rating and $21 price target at Stifel. 

Six Flags (SIX - Get Report) was initiated with a buy rating and $66 price target at SunTrust. 

Weatherford (WFT - Get Report) was downgraded to a neutral rating at Goldman Sachs. 

WPX Energy (WPX - Get Report) was initiated with a buy rating and $21 price target at Stifel, where it was also named a top pick. 

This article was written by a staff member of TheStreet.