MOSCOW, April 13 (Reuters) - The Caspian Pipeline Consortium (CPC), which supplies oil from Kazakhstan and Russia, increased crude exports by 48% in March, two industry sources said on Monday, buoyed by a recovery in output at the Tengiz oilfield.

Chevron-led CVX.N Tengiz is the largest single field in Kazakhstan, a country that produces 2% of the world's daily supply of crude oil, mainly exported via CPC to the Russian port of Novorossiysk.

The field, operated by Tengizchevroil, went offline in January after power outages were reported at the site near the Caspian Sea in western Kazakhstan.

Tengizchevroil's general director, William Lacobie, said last week that the field had returned to full production.

The sources said that CPC, which pumps oil via the Tengiz-to-Novorossiysk pipeline, increased oil exports last month to 6.196 million metric tons, or 1.58 million barrels per day. That compared with February's 3.79 million tons, or 1.07 million bpd.

CPC declined to comment.

Challenges facing CPC have included Ukrainian drone attacks on the Russian terminal. It had to halt its operations for a few days after Ukraine attacked its facilities at the end of November, effectively destroying one of three floating moorings.

Kazakhstan's energy ministry said on Tuesday that oil exports via CPC were stable after Russia's military had accused Ukraine of damaging its loading facilities.