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* Boeing gains, Caterpillar falls after Q1 results

* AT&T slides as revenue misses estimates

* Anadarko jumps as Occidental outbids Chevron

* Energy stocks among biggest decliners on S&P

* Indexes: Dow off 0.03%, S&P down 0.04%, Nasdaq up 0.04% (Updates to early afternoon)

By Sruthi Shankar and Amy Caren Daniel

April 24 (Reuters) – U.S. stocks hovered below their all-time highs on Wednesday, as investors digested a mixed batch of earnings reports and losses in energy stocks limited gains on the indexes.

The S&P 500 is 0.3% below its record high of 2,940.91 hit in late September. The index has rallied 17% this year, supported by