* * Scott Zimmerman, the chief executive of US player Storm Cat Energy, has taken administrative leave from the company for personal reasons. Keith Knapstad, chief operating officer, has been appointed acting chief executive.
* * ndependent oil and gas explorer PetroLatina Energy appointed Rudolph Berends as chief executive.
* * International subsea engineering company MCS appointed Patrick Scully as the new general manager of MCS' software division.
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