Exxon Mobil Corporation (NYSE: XOM)and ConocoPhillips (NYSE: COP) reported earnings Thursday and shares of both companies were down in early trading after ConocoPhillips earnings were in line with expectations, but investors worried about declining production. Concerns centered around Exxon and a production decline as well as lower profits.Chevron Corporation (NYSE: CVX) is reporting earnings before the bell on Friday and analysts forecast the company to report first-quarter earnings per share of just over three dollars on revenue of $68 billion, according to Thompson Reuters estimates. Also on Friday, home building company D.R. Horton Inc. (NYSE: DHI) is expected to report fiscal second-quarter earnings per share of 19 cents on revenue of over a $1 billion, reported by Thompson Reuters' analyst estimates.Reuters analysts expect The Goodyear Tire & Rubber Company (NYSE: GT) to report decreased profit when the company reports its first quarter results. Although Goodyear reported a profit of 34 cents a year ago, the consensus estimate calls for earnings per share of 30 cents.Finally, AbbVie Inc (NYSE: ABBV), the Abbott Laboratories spin-off, is expected to report first-quarter earnings of 66 cents on revenue of $4.29 billion. So far this year, the stock has gained almost 24 percent.Other stocks to also watch on Friday include National-Oilwell Varco Inc. (NYSE: NOV) and Weyerhaeuser Co. (NYSE:WY). National-Oilwell Varco is expected to report FY 2013 first-quarter EPS of $1.37 on revenue of $5.38 billion, compared with a profit of $1.44 a share on revenue of $4.30 billion in the year-ago period. Weyerhaeuser is expected to report FY 2013 first-quarter EPS of 22 cents a share on revenue of $1.87 billion, compared with a profit of 2 cents a share on revenue of $1.49 billion in the year-ago period.