April 24 (Bloomberg) -- Nigeria's white-collar oil workers union began a partial strike today at Exxon Mobil Corp.'s operations in the country after the two sides failed to reach an agreement over compensation, company and union officials said.

Members of the Petroleum & Natural Gas Senior Staff Association of Nigeria, or Pengassan, have locked the gates to Exxon's Lagos office and other facilities including the Qua Iboe export terminal, Lumumba Okugbawa, deputy secretary general of Pengassan said in an interview.

The union, which stopped short of a national strike, is allowing non-members to enter the facilities.

``The meeting did not produce the right result,'' Okugbawa said, adding that the national chapter postponed any action against Exxon until May. He said the local branch was leading the strike and couldn't say how long the strike may last.

Gloria Essien-Danner, a spokeswoman for Exxon's Nigeria unit, confirmed the strike had begun, adding that no production has been affected.

``They are making good'' on their ultimatum to strike, Essien said. The group has set a deadline of midnight to resolve issues over compensation.

Chevron Corp. on April 17 said that from the Petroleum & Natural Gas Senior Staff Association, or Pengassan, and the National Union of Petroleum & Natural Gas Workers, or Nupeng began a strike a week earlier that affected ``logistics'' at its Nigerian units. That strike has since been resolved, Chevron spokeswoman Margaret Cooper said in an e-mail yesterday.

To contact the reporter on this story: Julie Ziegler in Lagos at jziegler@bloomberg.net

Last Updated: April 24, 2008 05:47 EDT