Before we turn to today's presentation, we would like to say a brief word about Regency's 2012 Annual Investor Day. It will be held at the Crescent Hotel in Dallas on March 28. At this event, we will provide an in-depth look at our operations and discuss our growth opportunities. We hope that you'll be able to join us. If you're interested in attending, the invitation is posted to the homepage of our website. Please RSVP by e-mailing email@example.com or call us at (214) 840-5477.
With that, I'll turn the call over to Mike.
Michael J. Bradley
Thanks, Shannon, and good morning, and thank you for joining us today. I'm very pleased to say that Regency generated strong results for both the fourth quarter and the full year during, which we continue to grow our adjusted EBITDA, saw a significant increase in volumes in our Gathering and Processing segment and increased our distribution from an annualized rate of $1.78 in 2010 to $1.84 in 2011. 2011 was a significant and transformational year for Regency during which, we added a major NGL logistics platform with our acquisition of a 30% interest in the Lone Star Joint Venture. And as a result, we have a much larger scale and more diverse platform of services to offer our customers going forward.
Additionally, our footprint within the major liquid-rich plays like the Eagle Ford Shale in South Texas and the Permian Bone Spring formation in West Texas have created tremendous growth opportunities. This footprint, coupled with the addition of the Lone Star assets, enables us to provide producers with a complete range of services from wellhead all the way to fractionation and NGL storage in Mont Belvieu, one of the largest NGL storage, distribution and trading complexes in North America.
We have announced and plan to spend over $1 billion in organic growth capital over the next 18 months primarily in liquid-rich regions. These large-scale growth projects as well as the strategic location of our assets and active and emerging plays position Regency for additional growth over the next several years. We are very excited about the potential we see for Regency. I would like to briefly discuss our opportunities by business segment.