Oct 25 (Reuters) - Tethys Petroleum Ltd TPL.F
* Tethys Petroleum press release: corporate update
* Tethys Petroleum- evaluated costs & benefits of listing on TSX versus. possible listing on TSXV & concluded it would be "prudent" to pursue listing on TSXV
* Tethys petroleum - Olisol's actions against co are continuing and are having an adverse financial impact on the company
* Tethys Petroleum- due to delayed oil and gas payments, co hasn't been able to make monthly payment to secured rig loan lenders which was due on Sept 30
* Tethys Petroleum Ltd - company and its legal advisers are in "active discussions" with its customers
* Tethys Petroleum- expects to be able to repay rig loan due on Sept 30 in full early
* Tethys Petroleum Ltd - company is continuing to produce and deliver oil and gas and these operations have continued uninterrupted