Gainers

• Seadrill, Inc. (NYSE:SDRL) stock surged 6.0% to $1.51 during Thursday's pre-market session. The market value of their outstanding shares is at $176.0 million.
• Chesapeake Energy, Inc. (NYSE:CHK) stock rose 3.9% to $0.73. The market value of their outstanding shares is at $2.6 billion. According to the most recent rating by Morgan Stanley, on November 13, the current rating is at Equal-Weight.
• Teekay Tankers, Inc. (NYSE:TNK) shares moved upwards by 2.0% to $2.06. The market cap seems to be at $330.8 million. The most recent rating by Bank of America, on November 14, is at Underperform, with a price target of $2.00.
• Euronav, Inc. (NYSE:EURN) stock increased by 1.8% to $10.83.
• Frontline, Inc. (NYSE:FRO) stock moved upwards by 1.7% to $10.11. The market cap stands at $1.7 billion. The most recent rating by Evercore ISI Group, on October 18, is at Outperform, with a price target of $14.00.
• ProPetro Holding, Inc. (NYSE:PUMP) shares increased by 1.2% to $7.43. The market value of their outstanding shares is at $779.2 million. The most recent rating by B. Riley, on October 18, is at Buy, with a price target of $17.00.

Losers

• Carrizo Oil & Gas, Inc. (NASDAQ:CRZO) shares fell 0.3% to $7.70 during Thursday's pre-market session. The market value of their outstanding shares is at $681.6 million. The most recent rating by Wells Fargo, on October 15, is at Market Perform, with a price target of $9.00.