Delta Air Lines Inc (DAL.N) plans to start receiving shipments of renewable fuel feedstocks at its Trainer, Pennsylvania, refinery as part of a strategy that could reduce its environmental liabilities by hundreds of millions of dollars, according to three sources familiar with the matter. The move suggests a shift in strategy for Delta subsidiary Monroe Energy, which in the past has been among the smaller refiners that have tried to pressure the U.S. Environmental Protection Agency and the White House to reform biofuel laws. The U.S. Renewable Fuel Standard requires refiners to blend an increasing volume of biofuels into the nation’s fuel pool each year or buy compliance credits from those who do. Delta bought the Pennsylvania oil refinery 10 years ago in order to save money on jet fuel costs, the first-ever purchase of a refinery by an airline. The refinery is expected to […]