Michael Creel
Analyst · Tudor, Pickering
Thanks, Randy. Enterprise had another successful quarter to end 2011, setting financial and operating records as our integrated system of assets handled all-time-high natural gas volumes, NGL fractionation volumes, and fee-based natural gas processing volumes, as well as near-record liquids volumes. This led to new records for net income, adjusted EBITDA, gross operating margin and distributable cash flow.
In 2011, we invested $3.6 billion of growth capital to develop midstream infrastructure, primarily related to the Haynesville and Eagle Ford Shale plays, to serve our producing customers and to accommodate our petrochemical customers in meeting their increasing demand for NGLs as feedstocks. We completed 2 large projects in the fourth quarter of 2011, the Haynesville Extension of our Acadian natural gas pipeline system and our fifth NGL fractionator at Mont Belvieu. The Haynesville Extension provides producers access to 12 interstate pipelines that serve markets in the Midwest, Northeast and Florida, as well as our legacy Acadian system, and the fifth fractionator at Mont Belvieu increases our nameplate fractionation capacity to 380,000 barrels a day at that location.
These projects which total approximately $1.7 billion of capital investment were completed 5% under budget and began generating new sources of gross operating margin and distributable cash flow in the fourth quarter. Our commercial, engineering and operations teams continue to develop new projects, capitalizing on growth opportunities provided by our diverse system of assets.
We currently expect to spend approximately $3.5 billion on organic growth projects in 2012. In total, we have about $6.5 billion of projects under construction that are scheduled to begin operations in 2012 through 2014. We expect these new, primarily fee-based assets will generate additional distributable cash flow through 2015, giving us clear visibility to near-term growth.
Turning to our financial and operating performance. We reported record results again this quarter supported by growth in natural gas, NGL and crude oil production in the shale regions, as well as strong NGL sales margins. Our integrated system continues to operate at record or near-record volumes.
Enterprise reported gross operating margin of $1.1 billion for the quarter, a 33% increase over the fourth quarter of 2010. This led to record adjusted EBITDA of $1.2 billion and record net income of $726 million for the quarter. Net income attributable to partners for the fourth quarter of 2011 was $0.82 per unit on a fully diluted basis compared to $0.33 per unit on the same basis for the fourth quarter of 2010. I will point out that net income for the fourth quarter of 2011 included a $130 million or $0.15 per unit of gains from sales of assets.
Our partnership generated record distributable cash flow of $1.4 billion this quarter, which provided 2.7x coverage of the cash distribution declared with respect to the quarter. Included in distributable cash flow this quarter was $593 million of net proceeds from assets from the sale of our natural gas storage assets in Mississippi and 1.1 million common units of Energy Transfer Equity, L.P. units. Excluding these proceeds, our distribution coverage was still 1.5x, allowing us to retain some of our cash flow to help fund our growth capital projects and reduce our dependence on capital markets.
In 2011, we invested approximately $3.6 billion in growth capital and improved our credit metrics while only issuing $543 million of Enterprise common units. We have the flexibility to create additional value for our partners due to the way we manage our cash distribution coverage, and the fact that our general partner no longer has any incentive distribution rights. This disciplined approach to cash management results in a lower cost of equity capital, reduces equity dilution and supports long-term distribution growth.
Turning to segment results, our NGL Pipelines & Services segment reported gross -- record gross operating margin of $635 million for the quarter, a 39% increase over the $457 million reported for the fourth quarter of 2010. Our natural gas processing and related NGL marketing business benefited from strong demand for NGLs as higher NGL sales margins and higher natural gas processing margins led to a $157 million increase in gross operating margin. Our NGL marketing business continues to have higher NGL sales margins driven by strong industry fundamentals, such as increased petrochemical demand for light end feedstocks, regional basis differentials and a strong butane isomerization market.
Our Rocky Mountain processing plants also contributed to the increase in gross operating margin due to strong processing margins, higher equity NGL production and increased fee-based processing volumes. The Meeker gas plant operated near full capacity this quarter, processing approximately 1.5 billion cubic feet a day of natural gas. We also completed an expansion of our Piceance gathering system, which supplies our Meeker gas plant, resulting in lower pipeline pressures and higher gathering volumes from some of the more NGL-rich gas producing areas.
Fee-based natural gas processing volumes increased 22% to a record 4.1 billion cubic feet a day for the quarter compared to 3.3 billion cubic feet a day for the fourth quarter of 2010. Gross operating margin for our NGL pipelines and storage business decreased $10 million to $170 million this quarter, primarily from lower NGL volumes transported to fractionators in Louisiana due to the startup of our fifth NGL fractionator at Mont Belvieu, decreased NGL volumes on our Tri-States pipeline from unscheduled maintenance on a third-party's offshore platforms in the Gulf of Mexico, lower propane deliveries on our Dixie pipeline due to warmer weather and higher pipeline integrity expenses on certain pipelines.
The Mid-America and Seminole pipelines reported a $16 million rise in gross operating margin, largely due to an increase in systemwide tariffs that became effective in July 2011. Total NGL pipeline volumes were 2.3 million barrels per day this quarter versus 2.5 million barrels per day for the fourth quarter of 2010.
A few weeks ago, we announced that shippers exercised options to increase their capacity commitments on the Rocky Mountain expansion of our Mid-America pipeline to 82,500 barrels a day from an initial 38,500 barrels a day. That's a 114% increase. We executed firm 10-year ship-or-pay transportation agreements to our shippers to support this expansion, which will enable them to maximize the value of their Rocky Mountain NGL production by providing access to the largest NGL market in the U.S. The expansion will also complement our Texas Express Pipeline joint venture, which will provide shippers access to Mont Belvieu for their mixed natural gas liquids.
We also announced our plans to move forward with the construction of the Appalachian to Texas Ethane Express pipeline or the ATEX Express pipeline to provide shippers an attractive option to move ethane from the Marcellus and Utica basins to Mont Belvieu where they will have access to every ethylene plant in the United States. Shippers have executed 15-year take-or-pay proceeding agreements to move ethane volumes, ramping up to 120,000 barrels per day over a 5-year period beginning in early July -- of early 2014, and Jim will go into more detail about these projects in a few minutes.
Our NGL fractionation business reported gross operating margin of $69 million for the quarter, that's an 80% increase over the $38 million reported in the fourth quarter of 2010. Gross operating margin from our Mont Belvieu fractionators increased $23 million, primarily because of the addition of 2 new fractionation units. Frac-4 began commercial operations in the fourth quarter of 2010, while frac-5 began operations in the fourth quarter of 2011, and both have been running at full rates. Gross operating margins were also up at our Norco, Hobbs and South Texas fractionators.
Our Onshore Natural Gas Pipelines & Services segment reported gross operating margin of $199 million for the quarter, a 46% increase over the $136 million reported for the fourth quarter of 2010. Our Acadian Gas system reported a $30 million increase in gross operating margin for the quarter, largely due to its Haynesville Extension pipeline that began service on November 1, 2011.
Gross operating margin from the Texas Intrastate System increased $24 million, primarily because of growing production from the Eagle Ford Shale. Total onshore natural gas pipeline volumes increased 14% to a record 13.2 trillion Btus per day for the quarter. Producer development of the Eagle Ford Shale continues to be strong as the rig count increased 88% to 210 active rigs at the end of 2011 compared with 112 rigs operating at the end of 2010. We're currently receiving approximately 900 million cubic feet a day of natural gas from the Eagle Ford compared with 440 million cubic feet a day at the end of 2010.
The vast majority of our Texas gathering and processing systems are currently operating at maximum capacity. In the fourth quarter of 2011, we commissioned the expansion of our 30- and 36-inch Eagle Ford wet gas pipelines allowing us to increase capacity and lower operating pressures. We expect to see a steady increase in Eagle Ford volumes throughout the first half this year, with a significant increase in mid-2012 after we complete the first 2 300 million cubic feet a day trains at our Yoakum gas processing plant, and the commissioning of our Eagle Ford mainline expansion.
Gross operating margin for the Onshore Crude Oil Pipelines & Services segment increased 157% to $67 million compared to $26 million in the fourth quarter of 2010. All of Enterprise's major onshore crude oil pipelines, storage assets and marketing activities reported increases in gross operating margins for the fourth quarter of 2011 on higher volumes and sales margins, with the exception of Seaway Pipeline, which was essentially the same as the fourth quarter of 2010. Seaway obviously continues to be impacted by the lack of demand for northbound transportation to the oversupplied Cushing hub, but increased drilling activity in the Eagle Ford Shale led to higher volumes at our South Texas system.
In November 2011, Enterprise and Enbridge jointly announced plans to reverse the Seaway Crude Oil Pipeline that extends from Cushing, Oklahoma to Freeport, Texas. On January 4, we began open seasons for increased commitments from shippers to support an expansion of Seaway in an extension of the pipeline into the Port Arthur-Beaumont refining markets. The initial 150,000 barrels a day of capacity on the reverse system should be available during the second quarter of this year, and after pump station additions and modifications, we expect to be able to flow up to 400,000 barrels a day by the first quarter of 2013. The current open season is to solicit interest for capacity over and above that 400,000 barrels a day, and again, Jim will talk about this in more detail following my remarks.
Offshore Pipelines & Services segment reported gross operating margin of $60 million for the quarter compared to $66 million for the same quarter of 2010. The Independence Hub platform and Trail pipeline had a $2 million decrease in gross operating margin on 8% lower volumes. Overall, our offshore natural gas pipeline volumes were 1.1 trillion Btus per day for both quarters in 2010 and 2011.
Gross operating margin from our offshore crude oil pipelines decreased $5 million to $20 million this quarter, primarily due to maintenance by certain producers on their upstream platforms and wells that impacted volumes. Total offshore crude oil volumes were 282,000 barrels per day versus 304,000 barrels per day in the fourth quarter of 2010.
In January, Enterprise and Genesis Energy announced transportation agreements with 6 Gulf of Mexico producers that support the construction of a new crude oil pipeline serving the Lucius development area in the southern Keathley Canyon. This 149-mile 18-inch pipeline will have the capacity to transport 115,000 barrels per day of crude oil and will connect a Lucius production platform to an existing platform at South Marsh Island 205 that is part of the Enterprise-operated Poseidon pipeline system. We expect this pipeline to begin service by mid-2014. Crude oil from Lucius will be delivered into the Poseidon pipeline, providing yet another source of incremental cash flows from this project.
Gross operating margin from the Petrochemical & Refined Products and Services segment was $137 million this quarter compared to $140 million for the very strong fourth quarter of 2010. The propylene fractionation business had a $5 million decrease in gross operating margin due to lower sales margins and pipeline volumes. Propylene fractionation volumes were 75,000 barrels a day for the fourth quarter of 2011, down slightly from the 74,000 barrels a day in fourth quarter of 2010.
Enterprise's butane isomerization business reported a 52% increase in gross operating margin to $32 million this quarter due to increased isomerization volumes and revenues from the sales of byproducts. Butane isomerization volumes were a record 106,000 barrels a day for the fourth quarter of 2011, 22% higher than the fourth quarter of 2010. The refined products pipelines and services business had a $23 million decrease in gross operating margin, largely due to higher operating expenses and a 125,000 barrel a day decrease in refined products volumes being transported from the Gulf Coast to the Midwest.
Our octane enhancement and high-purity isobutylene business reported a 139% increase in gross operating margin to $27 million for the quarter, largely due to higher margins from octane additive sales, as well as a full quarter of earnings from our high-purity isobutylene plant that we acquired out of bankruptcy in late 2010.
We recently announced an increase in our quarterly distribution to $0.62 per unit or $2.48 on an annualized basis. This is a 5.1% increase over the distribution declared with respect to the fourth quarter of 2010. We've now increased our cash distribution for 30 consecutive quarters, the longest period for any of the large cap publicly-traded partnerships, and this is our 39th increase since our IPO in 1998.
In terms of consistent distribution growth, we increased cash distributions in excess of 5% for each of the last 7 years, including during the financial crisis in 2008 and 2009. After our major capital projects we completed in the second half of this year, including those in the Eagle Ford Shale, we plan to do our annual assessment and evaluate the potential for an increase to our distribution growth rate in light of our expected distribution coverage and our growth plans for 2013.
We're very pleased with the record results reported again this quarter and for the full year. This success would not have been possible without the hard work and dedication of our employees and the support of our investors and commercial partners. Our employees across every part of our organization have worked together to make Enterprise the partnership it is today, and I hope they are as proud of their accomplishments as we are of them.
We have 8 locations that have gone more than 20 years without a lost time accident, and 3 of those have gone more than 30 years, and we want to thank all of our employees for embracing safety as a core value. Of course, we have many other facilities with excellent safety records, but a lot of those have not been around for 5 years, much less 20 or 30.
I'd also like to congratulate the whole Enterprise organization for their hard work that led to the recent upgrades of our credit ratings by Standard & Poor's and Moody's. Both rating agencies maintained their positive outlook on Enterprise's senior unsecured debt securities and cited factors that contributed to an improved credit profile for Enterprise, including an increasing proportion of fee-based income, progress in simplifying our legal equity -- our legal entity structure and a lower cost of capital, primarily due to the elimination of the general partner incentive distribution rights. We remain excited about the opportunities available to the partnership, and we look forward to another successful year in 2012.
And with that, I'll turn the call over to Jim.