Earnings season continues Tuesday morning with reports from five more major companies: Marathon Petroleum Corp (NYSE:MPC), NYSE Euronext (NYSE:NYX), Office Depot Inc (NYSE:ODP), Oshkosh Corporation (NYSE:OSK) and Pfizer Inc. (NYSE:PFE).

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Marathon Petroleum Corp (NYSE:MPC) is expected to report earnings of $2.15 per share on revenue of $20.2 billion. The company’s revenue hasn’t changed much over the last five quarters, but its earnings have been positive surprised in the last four quarters.

Back in October, it was announced that Marathon Petroleum Corp (NYSE:MPC) would buy BP plc (NYSE:BP) (LON:BP)’s Texas City refinery for $2.5 billion. That deal closed in March. According to Insider Money, the refinery was a key acquisition for Marathon Petroleum because it boosted the company’s production capacity by 28 percent.

Analysts predict that NYSE Euronext (NYSE:NYX) will report 55 cents in earnings per share on revenue of $605 million. The company’s revenue has been roughly in line with Bloomberg’s consensus over the last five quarters, although its earnings have been either positive or negative surprises over those quarters.

Back in December, it was announced that IntercontinentalExchange Inc (NYSE:ICE) would buy NYSE Euronext (NYSE:NYX). In January it was revealed that Warren Buffett’s Berkshire Hathaway Inc. (NYSE:BRK.A) (NYSE:BRK.B) made an offer for the stock exchange in November, although the billionaire investor said the price just wasn’t right.

Office Depot Inc (NYSE:ODP) is expected to report earnings of 5 cents per share on $2.8 billion in revenue. The company’s earnings have been all over the charge over the last five quarters, posting either a significant positive surprise or a significant negative surprise.

The pending merger between Office Depot Inc (NYSE:ODP) and OfficeMax Inc (NYSE:OMX) is currently on hold after the Federal Trade Commission sent the two companies a second request for information. The merger won’t be completed until 30 days after the companies comply with all of the FTC’s requests for information.

Analysts are looking for Oshkosh Corporation (NYSE:OSK) to report earnings per share of 85 cents on $2 billion in revenue. The clothing maker’s earnings have been especially strong over the last five quarters, surprising positively in each quarter. Shares of Oshkosh Corporation (NYSE:OSK) skyrocketed in January after the company’s last positive earnings report.

Pfizer Inc. (NYSE:PFE) is expected to report earnings of 55 cents per share on revenue of $14 billion, according to a consensus of analysts polled by Bloomberg. There have been no major surprises in the company’s recent earnings history. The company announced earlier this year that its animal medicine unit Zoetis Inc. (NYSE:ZTS) was planning a $2.2 billion initial public offering in February.

Investors have been concerned about Pfizer Inc. (NYSE:PFE)’s earnings since the expiration of its patent for the cholesterol drug Lipitor. However, thus far the company appears to be performing quite well. Tomorrow’s earnings will tell a lot about how the company is doing in the wake of that patent expiration.