Feb 1 (Reuters) - Cub Energy Inc KUB.V :
* Executes agreement to increase ownership interest in KUBGAS up to 40% in
return for revocation of right of first refusal notice
* Gastek revoked its notice to exercise right of first refusal to purchase the
remaining 70% of kubgas holdings held by serinus energy inc
* Says in return for the revocation notice, gastek can earn up to an additional
10% ownership interest in kubgas
* Source text for Eikon ID:nCCN5zWzQJ
* Further company coverage KUB.V