W. Africa Crude-Trade thin with focus on industry event in London

LONDON, Feb 22 (Reuters) -
* Oil traders from around the world, including the United States, Britain and Brazil, have tripled their sales to Asia as they take advantage of an emerging supply gap after OPEC-led production cuts announced late last year.
* U.S. energy company Chevron is in talks with the Angolan government and state oil firm Sonangol to revise tax terms, with any future investment dependent on those talks, a senior company official was quoted as saying on Wednesday.
* No offers surfaced for April-loading Nigerian cargoes but offers for Angolan crude grades were steady, traders said. Activity was limited because the market was focused on the International Petroleum Week gathering in London.
TENDERS
* India's BPCL issued a buy tender for one or more cargoes loading between March 26 and April 15. The first part closes on Feb. 24 and the second on Feb. 28 with offers valid until the end of the same day.
* Results from India's MRPL tender have not yet surfaced but are expected by the end of the week. (Reporting By Julia Payne; Editing by David Goodman) ))