Chevron, the second-largest US oil and gas company, has agreed a $50bn deal to buy Anadarko Petroleum (APC) in a massive deal that will bolster its natural gas and shale operations.The cash and stock deal announced Friday values Anadarko at $65 per share, 39% higher than the oil company's closing stock price on Thursday. Based on Chevron’s closing price on April 11, 2019 and under the terms of the agreement, Anadarko shareholders will receive 0.3869 shares of Chevron and $16.25 in cash for each Anadarko share. The total enterprise value of the transaction is $50 billion.The acquisition of Anadarko will significantly enhance Chevron’s already advantaged Upstream portfolio and further strengthen its leading positions in large, attractive shale, deepwater and natural gas resource basins.