While the company braces for a proxy battle at its next annual meeting, El Paso Corp. on Tuesday moved forward with its plan to sell $3.4 billion in assets this year. So far it has sold $1.5 billion in assets including the sale on Tuesday of interests in 275 coal bed methane and conventional gas wells in the Rosa Federal Unit located in San Juan and Rio Arriba Counties, NM, to the Sacramento Municipal Utility District (SMUD) for $135 million.