The energy giant is spending nearly $50 billion to expand the Tengiz oil field, allowing it to pump one million barrels a day.

Chevron (NYSE:CVX) said Friday it achieved first oil from newly built production and processing facilities at Kazakhstan's huge Tengiz oil field, completing a $48B expansion that will bring its production to ~1% of global crude supply.

Chevron Corporation (NYSE: CVX) announced today that its 50 percent owned affiliate Tengizchevroil LLP (TCO) has started oil production at its Future Growth Project (FGP) located at the Tengiz oil field in Kazakhstan.