Mention the energy sector to anyone and the obvious association is negative. Plummeting oil prices, an ongoing battle between OPEC and US shale producers, CSG plays on the nose in eastern Australia and the resounding disappointment/failure of the burgeoning 'unconventional' energy sector in Australia. But amongst the gloom there are a few exceptions - and this is one. At a time when virtually all energy stocks are on the nose with investors, this advanced exploration play - Transerv Energy (ASX: TSV) has grown significantly in stature as it steadily de-risks its flagship Warro energy project in WA. Among a host of attractions are an advanced and increasingly large resource base, proximity to nearby pipeline infrastructure/energy markets, a motivated farm-in partner and end-user (Alcoa) that’s fully-funding all appraisal activity to the tune of $100 million. Adding to the credibility of this emerging production story is the fact that recent drilling successes have led to a more-than-doubling of the project’s overall resource base.