Crude oil inventories at the Cushing, Oklahoma storage hub, the delivery
point for the NYMEX
light-sweet crude oil futures contract, are
up by 12.0 million barrels (43%) between January 13, 2012 and March 30, 2012.
This was the largest increase in inventories over an 11-week period since 2009.
The inventory builds can be partly attributed to the emptying of the Seaway
Pipeline, which ran from the Houston area to Cushing, in advance of
its
reversal. While Cushing inventories are now approaching the record levels of
2011, the amount of available storage capacity at Cushing is much greater now
than it was a year ago, relieving some of the pressure on demand for incremental
storage capacity.
Historically, the Seaway Pipeline delivered crude oil from the U.S. Gulf
Coast to Cushing, where it then moved to the refineries connected by pipeline to
the storage hub. In November 2011, Enbridge Inc. acquired a 50% share in the
pipeline from ConocoPhillips; at this time, Enbridge and joint owner Enterprise
Product Partners announced they would reverse the direction of the pipeline to
flow from Cushing to the Gulf Coast. Currently, the pipeline is expected to
deliver 150,000 barrels per day (bbl/d) from Cushing to the Gulf Coast beginning
in June 2012. The companies plan to expand Seaway's capacity to 400,000 bbl/d in
2013 and to 850,000 bbl/d in 2014.
In early March, approximately 2.2 million barrels from the Seaway pipeline
was emptied into Cushing storage in order to prepare for the pipeline's
reversal. This accounts for about 20% of the build in inventories during this
period. However, even without the emptying of Seaway, inventory builds over the
past months have been particularly steep compared to the five-year average. As
of January 13, Cushing inventories stood at 28.3 million barrels, slightly below
their seasonal five-year average. After the 12.0-million-barrel increase,
inventories were almost 11 million barrels above their average level, the
largest such variation to average since June 2011. This is largely due to flows
into Cushing as a result of increasing production in the mid-continent region. (
DOE-EIA)