Investors have a message for suffering U.S. oil drillers: We feel your pain. They’ve pumped more than $1.4 trillion into the oil and gas industry the past five years as oil prices averaged more than $91 a barrel. The cash infusion helped push U.S. crude production to the highest in more than 30 years, according to data compiled by Bloomberg. Now that oil prices have fallen below $45, any euphoria over cheaper energy will be tempered by losses that are starting to show up in investment funds, retirement accounts and bank balance sheets. The bear market has wiped out a total of $393 billion since June -- $353 billion ... (full story)