Labarge, WY – Exxonmobil is in the process of upgrading its natural gas processing facility near the western Wyoming town of Labarge. The energy giant says it will spend about $400 million environmental improvements. Exxonmobil Spokeswoman Charlotte Howard says they are building a co-generation facility that will make the entire plant self-sustaining in regard to electricity. Howard says this should also reduce overall emissions from the Labarge facility. The co-generation facility that will supply Exxonmobil with its own electricity could also help locally. Howard says a portion of the power produced there will likely go into the western electric grid. She says another project they are working on involves drilling gas re-injection wells to dispose of byproducts like sulfur dioxide.