Oct 9 (Reuters) - SINTANA ENERGY ( SEUSF )
* RECOMMENDED ALL SHARE OFFER FOR CHALLENGER ENERGY
* RECOMMENDED ALL SHARE OFFER FOR CHALLENGER ENERGY
* CHALLENGER SHAREHOLDERS TO RECEIVE 0.4705 NEW SINTANA
SHARES PER
SHARE
* CHALLENGER VALUED AT ABOUT £45 MILLION OR C$84 MILLION ON
A
FULLY DILUTED BASIS