Thanks, Ed. Good morning to all, and thanks for joining us today. Ellen Wolf, our CFO, is here with me and will join in the presentation. We also have Walter Lynch, our head of Regulated Operations; and Kellye Walker, our General Counsel and Chief Administrator Officer, with us.
We're pleased to announce continued strong performance for 2011 on virtually all fronts. My comments will be brief, since we've previously covered our general performance during the earnings guidance call that we just held a few weeks ago. Additionally, we'll be discussing results for the full year of 2011. Details around the year and the fourth quarter in specific will be able to be found in the 10-K, which should be filed tomorrow.
Turning to Slide 5, you can see that we delivered solid results for the year all around. Total revenues increased $111 million year-over-year to approximately $2.7 billion. Adjusted net income and earnings per share increased to approximately $320 million and $1.81 per share, respectively.
These adjusted earnings are represented in the same manner that we have throughout the year, and Ellen will go through those adjustments in more detail. In 2011, our regulated O&M expense was flat to 2010, which when coupled with a 3.6% increase in regulated revenues, drove 170 basis point improvement in our O&M efficiency ratio, from 45.5% to 43.8% over the last 12 months.
We also generated a 4.3% year-over-year increase in consolidated cash flow, and when you take into account a onetime tax refund that was received in 2010 and an additional pension contribution that we made at the end of 2011, cash flow from operations really increased about 16%. All of these items resulted in slightly more than 100 basis points increase in our earned ROE to just over 7.5%.
While we're not yet where we want to be, significant progress has obviously been made. In recognition of this financial performance, as we previously announced, our quarterly cash dividend payment of $0.23 per share was declared in December. And additionally, on February 24 of this year, our board declared a quarterly cash dividend payment of $0.23 per share payable on June 1, 2012, to shareholders of record as of April 20, 2012. We also reaffirm the 2012 earnings guidance range we provided a few weeks ago of between $1.90 to $2 per share for ongoing operations.
Before turning the call over to Ellen to go into more detail on this year's financial results, let me just note that Slide 6 shows that we successfully accomplished all of the items we laid out for 2011 at our Analyst Day a little over a year ago. We're very pleased with this progress and look forward to continuing that trend into and through this year. With that said, Ellen, let me turn it over to you.