Kerogen tests waters for sale of Zennor Petroleum - sources

LONDON (Reuters) - Private-equity firm Kerogen Capital is seeking offers for its North Sea business Zennor Petroleum from a select number of bidders with the help of U.S. investment bank Citi, industry sources said.Kerogen has opened Zennor's books to potential buyers after receiving approaches from some, one banking source said, adding that Britain's Serica Energy could make an offer. Serica was not immediately available for comment. Kerogen and Zennor declined to comment. Citi had no..