Natural gas inventory
Every Thursday, the EIA (U.S. Energy Information Administration) publishes a natural gas inventory report for the previous week. The latest report is for the week ended November 13, 2015.
Throughout the year, natural gas is stored underground to save fuel for the peak demand during the winter. For the week ended November 13, 2015, natural gas inventory came in at 4,000 Bcf (billion cubic feet) compared to 3,985 Bcf a week earlier.
The inventory figure was higher than the 3,596 Bcf recorded the year before and the five-year average of 3,793 Bcf. The change of 15 Bcf in the underground inventory during the week ended November 6 was lower than the 23 Bcf forecast by a group of analysts surveyed by Bloomberg.
Why is the EIA report important?
Commodity prices are a function of supply and demand. If demand rises while supply remains constant, prices rise because more customers are chasing each unit of a commodity.
In contrast, if supply rises for a given level of demand, prices fall because the commodity is available in abundance. Inventory levels reflect supply and demand trends, so they’re useful for getting a sense of natural gas prices.
Impact on coal
Natural gas inventory has risen over the past 29 weeks since the injection season started. A lower-than-expected inventory indicates lower-than-expected supply or higher-than-expected demand. This generally boosts natural gas prices. A rise in natural gas prices is positive for thermal coal producers because utilities (XLU) burn more coal when natural gas prices rise.
A fall in natural gas prices over the last few months has hurt coal producers (KOL), especially those with operations in the East and Midwest such as Alliance Resource Partners (ARLP), Natural Resource Partners (NRP), Arch Coal (ACI), and Peabody Energy (BTU).