Annual Energy Review

September 2012  PDF | previous editions
Release Date: September 27, 2012

Total Energy Flow,  (Quadrillion Btu)

Footnotes:
¹ Includes lease condensate.
² Natural gas plant liquids.
³ Conventional hydroelectric power, biomass, geothermal, solar/photovoltaic, and wind.
⁴ Crude oil and petroleum products. Includes imports into the Strategic Petroleum Reserve.
⁵ Natural gas, coal, coal coke, biofuels, and electricity.
⁶ Adjustments, losses, and unaccounted for.
⁷ Natural gas only; excludes supplemental gaseous fuels.
⁸ Petroleum products, including natural gas plant liquids, and crude oil burned as fuel.
⁹ Includes 0.01 quadrillion Btu of coal coke net exports.
¹⁰ Includes 0.13 quadrillion Btu of electricity net imports.
¹¹ Total energy consumption, which is the sum of primary energy consumption, electricity retail sales, and electrical system energy losses. Losses are allocated to the end-use sectors in proportion to each sector's share of total electricity retail sales. See Note, "Electrical Systems Energy Losses," at end of Section 2.

Notes:
• Data are preliminary.
• Values are derived from source data prior to rounding for publication.
• Totals may not equal sum of components due to independent rounding.

Sources:
U.S. Energy Information Administration, Annual Energy Review 2011 Tables 1.1, 1.2, 1.3, 1.4, and 2.1a.