UPDATE 1-Western Refining plans concurrent notes, stock offering

* To use proceeds to repay debt * Shares down 4 pct

June 1 (Reuters) - Western Refining Inc (WNR.N) on Monday said it plans to offer concurrently about $600 million senior secured notes due 2017 and about $100 million of convertible senior notes due 2014.

The independent refiner, which also plans to offer 14 million common shares, said it will use net proceeds from each offering to repay its debt under its term loan credit agreement.

El Paso, Texas-based Western Refining operates four refineries in Arizona, New Mexico and West Texas. The company also operates about 160 convenience stores and gas stations in New Mexico, Arizona and Colorado.

Shares of the company were trading down 4 percent at $13.65 Monday on the New York Stock Exchange. (Reporting by Adveith Nair in Bangalore; Editing by Jarshad Kakkrakandy)