John Brannan
Analyst · CIBC
Thank you, Brian, and good morning. As Bryan mentioned, we had a great start to the year. Beginning with our oil sands operations, first quarter production from Foster Creek and Christina Lake increased to about 82,000 barrels per day net to Cenovus, 23% higher than the same period in 2011. This production growth is a result of the industry-leading ramp-up at Christina Lake phase C. Total net production from Christina Lake averaged about 24,700 barrels per day for the quarter, or about 85% of nameplate capacity with a steam to oil ratio of 2.1. The impressive ramp-up can be attributed to overall reservoir performance and great execution from our teams, combined with the application of accelerated startup techniques. Based on this performance, we now expect ramp-up to full production to range between 6 and 12 months for future phases at Christina Lake, rather than the historical 12 to 18 months. The team was also successful in actually exceeding gross nameplate capacity of 58,000 barrels per day on February 19, and we are working hard to maximize production at those rates through the year.
Construction at Christina Lake phase D is over 75% complete, and we are on track for first production during the fourth quarter of this year. We also advanced construction of phase E to over 40% complete with first production expected during the fourth quarter of 2013. Given the production growth at Christina Lake, we recently established a bitumen blend stream called Christina Dilbit blend, or CDB. In addition to CDB, we continue to sell our Christina Lake production into Western Canada Select, or WCS, subject to a quality equalization charge. We expect that the CDB differential to WCS will narrow as production from Christina Lake continues to grow and gains acceptance with a wider base of refining customers.
Our Foster Creek operations continue to demonstrate reliable performance with production averaged 57,200 barrels per day on a net basis, or about 95% of design capacity during the quarter at a steam to oil ratio of about 2.1. We are working hard to operate the facilities at full capacity, but we had a few minor power outages and some unscheduled maintenance that negatively impacted our production volumes during the quarter. Looking forward, we anticipate continued strong operation performance but have a 17-day turnaround plan during the second quarter. This work has been built into our guidance and is expected to impact volumes by about 2,100 barrels per day on an annualized basis, or about 8,300 barrels per day for the second quarter net to Cenovus.
We also completed our winter drilling program during the quarter, which included about 450 gross stratigraphic and observation wells drilled across our oil sands operations. These wells help advance our development plans, by supporting a regulatory application process, assist in our understanding of the reservoir basin and help move our resource barrels along the value chain from resources ultimately to reserves.
Looking at our emerging oil sands areas, we successfully completed the winter work program required for the dewatering pilot at Telephone Lake. We will be starting up this pilot in May. The pilot is designed to test the efficiency of removing the freshwater off the top of the reservoir. This is expected ultimately to lead to a reduced steam to oil ratio for the commercial project.
At the Grand Rapids pilot, we drilled our second SAGD well pair during the quarter which will help us understand more about the reservoir performance of this emerging play. At Narrows Lake, our next oil sands development, the project team continues to work on detailed engineering and design and have placed orders for some long lead items. We are also ready to begin our initial site preparation once regulatory approval is received, which we anticipate obtaining in the second quarter.
At Pelican Lake, our infield drilling and polymer flood program continued through the first quarter. Overall performance is as expected. We currently have 4 rigs drilling in the area and we are beginning to see positive results from our program despite essentially flat production levels compared to the first quarter of 2011. Production during the quarter was negatively impacted by natural declines of the reservoir and reduced operating pressures in the reservoir as a result of shut-ins, which were required to complete infield drilling between existing wells. We saw a strong growth in oil volumes from tight oil plays in Saskatchewan and Southern Alberta. In the Lower Shaunavon and Bakken, quarterly production averaged just under 6,900 barrels per day, up about 10% from 2011 exit rates. Construction of central facilities to connect the Lower Shaunavon and Bakken production to pipelines continue throughout the quarter and we now expect completion of these central batteries by the end of the second quarter.
In Southern Alberta, we continue to assess the opportunities on our existing properties in the region. We are encouraged by early results from these emerging tight oil plays and have added about 2,300 barrels per day of light oil production in Southern Alberta since the start of this year. From a capital perspective, we are on track with our spending plans this year. We continue to monitor inflation with all of our -- in all of our operating areas and we have built in about 5% to 7% inflation on our oil sands projects this year. In our conventional operations, demand for services also remained strong and we have included about 5% inflation into our full-year plans.
So let's talk about the operating cost. Operating costs at Foster Creek and Christina Lake were at or above the high end of our guidance range for the quarter. At Foster Creek, we incurred higher repairs and maintenance and work over costs during the quarter. At Christina Lake, the ramp-up in production had a positive impact on the per barrel operating cost. However, this benefit was slightly offset by non-recurring repair and maintenance costs associated with the ramp-up of phase C. For the remainder of the year, we expect that per unit operating costs at Christina Lake will continue to decrease as production increases. We anticipate that annual operating cost at Foster Creek and Christina Lake will remain in line with guidance expectations for the year.
We continue to manage the decline on natural gas volumes throughout the quarter with minimal capital spending. Unseasonably warm weather this winter resulted in fewer freeze offs than expected during the first quarter. This clearly had a positive effect on production. It was slightly offset by the sale of a non-core natural gas asset in the Borger region. This small disposition impacted our production by about 15 million cubic feet per day during the quarter. We continue to shift capital from natural gas to oil development and expect to be at or below the low end of guidance on natural gas spending this year. Even with this lower spending, we expect that our natural gas assets will achieve our guidance expectations on production.
So before I turn the call over to Don to provide an overview of our refining results, I want to point out that our first quarter results clearly highlight the value of our integrated business model. With widening upstream differentials such as we saw in the first quarter, cash flows from our producing assets were negatively impacted. However, these same wider differentials made feedstock for our refineries less expensive. This, combined with strong -- very strong market crack spreads translated into strong refining performance that more than offset the impact of widening differentials on the upstream.
In summary, we posted another operationally solid quarter. Volume growth from our oil sands assets and emerging tight oil plays combined with stable production from our conventional oil assets and another strong quarter from refining have given us a great start to this year.
Now over to you, Don.