The world's largest consumer of energy is producing oil and gas hand over fist. Yet judging by the earnings results of the three largest U.S. oil companies, you couldn't tell.
Chevron on Friday was the last of the Big Three oil companies to report earnings. The company recorded a steep drop in fourth-quarter profit, as shrinking refining margins and disappointing production around the globe sent earnings down 32 percent.
The second-largest U.S. oil company matched Wall Street's estimates, reporting a profit of $2.57 per share on revenue of $56.16 billion. Analysts had expected Chevron to report earnings per share of $2.57 per diluted share on $64.93 billion in revenue, according to a consensus estimate from Thomson Reuters.
Despite the U.S. shale boom expanding rapidly, Chevron saw sharply lower oil and natural gas production—singing the blues as the world's largest economy produces record amounts of fossil fuels. On Thursday, oil giant ExxonMobil posted a profit of $8.35 billion in the fourth quarter, but ended the year with its lowest annual profit in three years.
(Read more: US oil, gas juggernaut on course through 2016: EIA)
ConocoPhillips continued to be the lone exception, as the company
The big companies are suffering from problems related to scale, analysts say, with players like Chevron and Exxon on the outside looking in as investment flocks to hotbeds of U.S. energy production.
After years of megamergers, multinational companies remain too large to merge with the smaller, more nimble competitors that are profiting from the North American energy boom.
"They're so big that for them to move the needle to grow revenue and earnings fast enough, you need real dollar increases" in their bottom line, said Leo Kelly, managing director at Kelly Wealth Management.
Natural gas production would be a key growth area for the majors, Kelly added. However, Big Oil has yet to make a real dent in the highly competitive market for hydraulic fracturing, or fracking.