Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of oil and gas engineering and services company Newpark Resource (NYSE: NR) were jumping on Friday, gaining as much as 10% before settling back down a bit.

So what: After yesterday's close, Newpark announced fourth-quarter results. For the quarter, the company reported $195 million in revenue, up 44% from the fourth quarter of 2009, and earnings per share of $0.15 versus a break-even quarter a year ago. Both revenue and earnings topped analysts' estimates.

Now what: Full-year 2010 results were a big recovery from a dismal 2009 as revenue jumped 46% and operating profit of $78 million reversed a loss from the prior year. Wall Street sees a more sober year ahead as analysts are estimating revenue growth of 7% and earnings-per-share growth of just over 1%. However, they may be reconsidering those numbers after the company's strong fourth-quarter showing.

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