The deal is the largest oil and gas acquisition in the United States since oil prices crashed in November 2014.
Ariad Pharmaceuticals Inc., up $10.01 to $23.75. VCA Inc., up $20.02 to $90.79. Merrimack Pharmaceuticals Inc., up 7 cents to $3.67.
Brian Singer, Goldman Sachs equity analyst, speaks with CNBC's Brian Sullivan and the Goldman Sachs Global Energy Conference about the best bets in the energy sector.
The energy sector powers the S&P 500 to a new intraday high, led by Chesapeake Energy and Marathon Petroleum.
Jon Najarian liquidated all of his holdings in his CNBC PRO model portfolio on Friday, uneasy about what may come next from the Fed.
Citi and Bank of America release two contrasting takes on the energy space. The "FMHR" traders debate whose call is right and give their top picks.
The billionaire hedge fund manager cut back on some of his biggest bets in the energy sector and sold off other names during the second quarter.
"Halftime Report" traders Joe Terranova and Jim Lebenthal made a number of trades for their CNBC PRO model portfolios Tuesday.
"Halftime Report" trader Joe Terranova cuts risk in his CNBC PRO model portfolio Monday after he wrongly went all in before the Brexit decision.
Jim Cramer goes off the charts to find out of the recent rally in natural gas could run out of energy, and for how long.
"Halftime Report" trader Joe Terranova got fully invested in his CNBC PRO model portfolio, which is currently up 11 percent on the year.
Jim Cramer knew coal was on its way out, he just didn’t expect it to happen this fast.
Jim Cramer outlines what has prompted the staggering rally in energy prices, and what stands in the way of it going higher.
Jim Cramer says the strength of stocks are being masked by both the Fed and oil.
Range Resources said on Monday it would buy fellow oil and gas producer Memorial Resource Development for about $3.3 billion.
Some of the names on the move ahead of the open.
Using Kensho, we looked at which stocks perform the best on rebounding oil prices.
"Power Lunch" hosts Melissa Lee and Brian Sullivan look at 5 stocks with analyst recommendations, including United Continental and Range Resources Corp. both getting downgrades.
CNBC "Halftime Report" trader Jon Najarian bought American Airlines Group for his model portfolio Friday.
CNBC "Halftime Report" trader Jon Najarian bought shares of a small-cap biotech stock after spotting unusual options activity.