Earnings releases are coming fast and furious now, as the biggest names in the stock market have been announcing their results for the last quarter of 2011. Tomorrow, two more members of the Dow Jones Industrials (INDEX: ^DJI) will put their investors to the test by announcing how they finished out the year. Good news could give the stock market a bigger push up, but bad news could reverse the trend and send stocks back down.

Let's take a closer look at the companies that are issuing earnings reports tomorrow.

Chevron (NYSE: CVX)
The oil industry has had the wind at its back for some time now as oil prices have stayed high. Chevron has seen growth in earnings per share for four straight quarters. However, analysts don't expect that streak to continue. Analysts estimate earnings per share of $2.85 and revenue of $70.96 billion. Last quarter, the company reported earnings per share of $3.95.

Investors have been lowering their expectations about Chevron and other oil majors sustaining their growth. Yesterday, ConocoPhillips (NYSE: COP) was the first of the oil majors to report, and it walloped earnings estimates. Hopefully, Chevron can do the same.

Procter & Gamble (NYSE: PG)
While Procter & Gamble can't claim the same consistency in earnings growth as Chevron, it is still doing well. In its previous quarter, it saw a 12% rise in year-over-year earnings and beat analyst expectations by $0.02. For this quarter, analysts expect earnings per share of $1.08 and revenue of $22.2 billion.

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