A replay of this call will be available today later on through a link on our homepage. As usual, our call will contain some forward-looking estimates. And we will be refining some of those in our call today, but we are not planning to issue a new 8-K. We will, however, post those changes to the guidance page of our website. To find that, just click on the Guidance link found in the Investor Relations portion of the Devon website.
Please note that all references today to our plans, forecast, expectations and estimates are forward-looking statements under U.S. securities law. And while we always strive to give you the very best information possible, there are many factors that could cause our actual results to differ from those estimates. We urge you to review the discussion of risk factors and uncertainties that we provide in our SEC Form 10-K filing, provided that is. Also in today's call, we will reference certain non-GAAP performance measures. When we use these measures, we're required to provide related disclosures. Those are also available on the Devon website.
The First Call mean estimate for Devon's earnings for the first quarter was $1.43 per share. However, at the midpoint of the guidance we provided, you would've expected our first quarter earnings to come in at $1.35 a share or $0.08 below The Street estimates. However, our actual first quarter non-GAAP results came in at $1.05 per share or $0.30 below our guidance. This was most almost entirely due to unusually wide differentials on Canadian oil and U.S. NGLs. Jeff will cover both of these, as well as our expected future price differentials in detail later in the call. With those items out of the way, I'll turn the call over to John.
John RichelsThank you, Vince, and good morning, everyone. Although, as Vince mentioned, wide differentials had a significant negative impact on earnings, we delivered another very solid quarter from an operational perspective.