HOUSTON, Aug 28 (Reuters) - Miner Gold Reserve

said on Thursday that its subsidiary Dalinar Energy submitted an

improved bid for the parent of refiner Citgo Petroleum in a

court-organized auction of shares, whose winner is expected to

be decided next month.

The company "has materially increased its proposed purchase

price, arranged for additional financial support, and increased

the certainty of its bid in non-economic ways," it said in a

release.