Crackity - in answer to your pop quiz, Petsec Energy (PSA) commenced a buyback around Nov 2013 when their shares were approx 10 cents. Check out the chart of daily prices over the last year for PSA. Very similar in pattern to OXX prior to and after Matuku-1. PSA prices after buyback went down to 7 cents from 10 cents and back up to 9.5 cents.
Read the PSA Dec 2013 Quarterly Report for the details and reason for the buyback along with the outcome.
OXX Price at posting:
11.0¢ Sentiment: LT Buy Disclosure: Held