Thomson ReutersJanuary 15, 2013 11:30
* Company raises 23 mln stg in placing
* Sees deal signed in Q4 2013, Q1 2014
* Placing to fund shale exploration plans and oil field deal
* Shares down 5 pct
By Sarah Young
LONDON, Jan 15 (Reuters) - British exploration firm IGas Energy has received interest from some of the oil industry's biggest names to look for shale gas in the UK, its chief executive said, amid growing demand to develop the country's unconventional resources.