Early earnings news clearly has unanimity of results in oilfield services. Halliburton (NYSE: HAL) kicked things off for the group on Monday by reporting solid results in North America, while the rest of the world was sluggish for a variety of reasons, including weather.

On Tuesday, Weatherford International (NYSE: WFT) played the same tune. For the quarter, the company reported a loss of $40 million, or $0.05 a share, versus year-ago earnings of $164.8 million, or $0.23 a share. Weatherford's most recent numbers included several one-time items, without which the company would have earned $0.06 a share. I'll note only that, like Halliburton, Weatherford was affected by a $40 million charge related to the devaluation of the Venezuelan currency.

Looking at specific geographic results, Weatherford checked in with $891 million in North American revenues. That was a 21% jump from the fourth quarter. Internationally, most regions were down 5% sequentially, except Latin America, which was down a painful 31% from the final quarter of 2009.

If you thought you'd encountered unusually chilly weather during the now (thankfully) departed winter, Weatherford CEO Bernard Duroc-Danner noted on the company's conference call that "Within the weather related category, Russia was very affected as was Asia. Russia's Western Siberia fields experienced prolonged operations shutdowns with temperatures touching minus 40 degrees centigrade. China and Australia were also very weak, also for climatic reasons."

But because investing is mostly about looking forward, it's important to note that Weatherford Chief Financial Officer Andy Becnel is looking for approximately flat earnings in the company's current quarter, characterized by, among other things, slippage in North America -- primarily driven by Canadian seasonality. His assessment for Latin America is for a decline in revenues, but a slight improvement in earnings. And he anticipates a meaningful improvement in the Eastern Hemisphere.

We'll learn more about the global services picture during the last two days of this week when Diamond Offshore (NYSE: DO) and Schlumberger (NYSE: SLB), respectively, report their results. Stay tuned, folks.

As I passed along to Fools in my article on Halliburton's results, it appears that the picture for oilfield services is brightening, following 18 months of dinginess. The best way to play that change? I'm still a strong believer in Schlumberger and Halliburton.

Fool contributor David Lee Smith doesn't own shares in any of the companies named above. He does welcome your comments or questions. The Motley Fool has a disclosure policy.