May 9 (Reuters) - Proxy adviser Institutional

Shareholder Services on Thursday recommended shareholders of

SilverBow Resources ( SBOW ) vote for the company's board

nominees, and withhold support for directors backed by activist

investment firm Kimmeridge Energy Management.

Earlier on Thursday, fellow proxy adviser Glass Lewis also

recommended SilverBow shareholders vote in the company's board

selections.

Kimmeridge, the largest shareholder in SilverBow, is aiming

to seat three new independent directors at the oil and gas

producer's annual shareholder meeting on May 21, charging the

company needs to revamp its governance and improve performance.