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In the August 2018 update of its Short-Term Energy Outlook (STEO), the U.S. Energy Information Administration (EIA) forecasts Brent crude oil prices to average $73 per barrel (b) in the second half of 2018 and decline to an average of $71/b in 2019 (Figure 1). Competing upside and downside price risks are expected to play a large role in price formation during the forecast period. Upside price risks stem largely from the possibility of supply outages when both petroleum inventories and spare crude oil production capacity for members of the Organization of the Petroleum Exporting Countries (OPEC) are lower than average. Downside price risks stem largely from potentially reduced demand because economic growth and resulting crude oil demand could be lower than forecast. 


Daily and monthly average crude oil prices could vary significantly from annual average forecasts because global economic developments and geopolitical events in the coming months have the potential to push oil prices higher or lower than the current STEO price forecast.

EIA forecasts total global liquid fuels inventories to decrease by 0.3 million barrels per day (b/d) in 2018, followed by an increase of 0.3 million b/d in 2019 (Figure 2). Inventory changes of this magnitude should be considered mostly balanced, contributing to forecast Brent crude oil prices remaining between $70/b and $73/b from August 2018 through the end of 2019. However, the forecast for slight inventory increases in 2019 contributes to expectations of modest downward price pressure in 2019.


On the supply side, the combination of relatively low inventory and OPEC spare capacity levels elevates the risk of upward price movements if a supply disruption occurs or if forecast production growth does not materialize. 

Changes in global petroleum inventories data are not collected directly, but are estimated based on forecasts for global production and consumption. However, inventory data for the United States and other countries within the Organization for Economic Cooperation and Development (OECD) are available and may provide insight into global supply. In terms of days of supply, OECD inventories are expected to remain less than the monthly average for the previous five years, so any outages could have a significant effect on crude oil prices (Figure 3).


In 2018 and in 2019, EIA expects OPEC spare crude oil production capacity to decrease from 2017 levels (Figure 4). Although spare capacity in 2016 was lower than that forecast for 2018 and 2019, OECD inventories were higher in 2016, as seen in Figure 3. OPEC spare production capacity is forecast to average 1.6 million b/d in 2018 and to fall to 1.3 million b/d in 2019, down from 2.1 million b/d in 2017 and lower than the 10-year (2008–17) average of 2.3 million b/d. With little spare capacity, risks on the supply side (including greater-than-forecast disruptions in Iran, Venezuela, or Libya) may have significant price impacts.


EIA forecasts OPEC’s petroleum and other liquids production to decrease from the 2017 level of 39.5 million b/d to 39.1 million b/d in 2018 and to 39.0 million b/d in 2019. The small decline in 2019 reflects crude oil production increases from some producers that nearly offset anticipated declines from other OPEC members.

Brent spot prices averaged more than $74/b in June 2018, up $10/b from December 2017. Price increases in 2018 have been largely driven by unplanned supply disruptions and the expected loss of some Iranian crude oil production by the end of the year because of renewed sanctions. The August 2018 STEO reflects the U.S. withdrawal from the Joint Comprehensive Plan of Action (JCPOA) and the plan to reinstate sanctions on companies doing business with Iran. Sanctions will likely affect the Iranian oil sector, which would limit the country’s crude oil production and exports by the end of 2018. Uncertainty remains regarding the degree to which the U.S. sanctions will take Iranian crude oil off the market.

Future crude oil production in Venezuela and Libya and the magnitude of the production response from other OPEC members and Russia are also highly uncertain. Developments regarding these and other variables could influence prices in either direction.

Concerns about the pace of future economic and oil consumption growth have likely contributed to demand side uncertainty. The August STEO forecasts global demand growth for petroleum and other liquids to average 1.66 million b/d in 2018 and 1.57 million b/d in 2019, down from the July STEO forecast of 1.72 million b/d and 1.71 million b/d for 2018 and 2019, respectively.

U.S. average regular gasoline price increases, diesel price decreases

The U.S. average regular gasoline retail price increased less than one cent from last week to remain at $2.85 per gallon on August 6, 2018, up 47 cents from the same time last year. Rocky Mountain and East Coast prices each rose over a penny to $2.92 per gallon and $2.80 per gallon, respectively, and Midwest prices increased less than one cent to $2.77 per gallon. West Coast and Gulf Coast prices each decreased less than one cent to $3.34 per gallon and $2.59 per gallon, respectively.

The U.S. average diesel fuel price decreased less than one cent from last week to $3.22 per gallon on August 6, 2018, 64 cents higher than year ago. Midwest prices fell nearly one cent to $3.15 per gallon, and West Coast, East Coast, and Gulf Coast prices each decreased less than a penny, remaining virtually unchanged at $3.72 per gallon, $3.22 per gallon, and $3.00 per gallon, respectively. Rocky Mountain prices were unchanged at $3.36 per gallon.

Propane/propylene inventories rise slightly

U.S. propane/propylene stocks increased by 0.1 million barrels last week to 66.4 million barrels as of August 3, 2018, 9.3 million barrels (12.2%) lower than the five-year (2013-2017) average inventory level for this same time of year. Gulf Coast inventories increased by 0.3 million barrels and Rocky Mountain/West Coast inventories rose slightly, remaining virtually unchanged. Midwest and East Coast inventories decreased by 0.2 million barrels and 0.1 million barrels, respectively. Propylene non-fuel-use inventories represented 4.3% of total propane/propylene inventories.

For questions about This Week in Petroleum, contact the Petroleum Markets Team at 202-586-4522.

Crude oil gasoline STEO (Short-Term Energy Outlook) Petroleum USA Iran Libya Venezuela OPEC OECD
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The United States consumed a record amount of renewable energy in 2019

In 2019, consumption of renewable energy in the United States grew for the fourth year in a row, reaching a record 11.5 quadrillion British thermal units (Btu), or 11% of total U.S. energy consumption. The U.S. Energy Information Administration’s (EIA) new U.S. renewable energy consumption by source and sector chart published in the Monthly Energy Review shows how much renewable energy by source is consumed in each sector.

In its Monthly Energy Review, EIA converts sources of energy to common units of heat, called British thermal units (Btu), to compare different types of energy that are more commonly measured in units that are not directly comparable, such as gallons of biofuels compared with kilowatthours of wind energy. EIA uses a fossil fuel equivalence to calculate primary energy consumption of noncombustible renewables such as wind, hydro, solar, and geothermal.

U.S. renewable energy consumption by sector

Source: U.S. Energy Information Administration, Monthly Energy Review

Wind energy in the United States is almost exclusively used by wind-powered turbines to generate electricity in the electric power sector, and it accounted for about 24% of U.S. renewable energy consumption in 2019. Wind surpassed hydroelectricity to become the most-consumed source of renewable energy on an annual basis in 2019.

Wood and waste energy, including wood, wood pellets, and biomass waste from landfills, accounted for about 24% of U.S. renewable energy use in 2019. Industrial, commercial, and electric power facilities use wood and waste as fuel to generate electricity, to produce heat, and to manufacture goods. About 2% of U.S. households used wood as their primary source of heat in 2019.

Hydroelectric power is almost exclusively used by water-powered turbines to generate electricity in the electric power sector and accounted for about 22% of U.S. renewable energy consumption in 2019. U.S. hydropower consumption has remained relatively consistent since the 1960s, but it fluctuates with seasonal rainfall and drought conditions.

Biofuels, including fuel ethanol, biodiesel, and other renewable fuels, accounted for about 20% of U.S. renewable energy consumption in 2019. Biofuels usually are blended with petroleum-based motor gasoline and diesel and are consumed as liquid fuels in automobiles. Industrial consumption of biofuels accounts for about 36% of U.S. biofuel energy consumption.

Solar energy, consumed to generate electricity or directly as heat, accounted for about 9% of U.S. renewable energy consumption in 2019 and had the largest percentage growth among renewable sources in 2019. Solar photovoltaic (PV) cells, including rooftop panels, and solar thermal power plants use sunlight to generate electricity. Some residential and commercial buildings heat with solar heating systems.

October, 20 2020
Natural gas generators make up largest share of U.S. electricity generation capacity

operating natural-gas fired electric generating capacity by online year

Source: U.S. Energy Information Administration, Annual Electric Generator Inventory

Based on the U.S. Energy Information Administration's (EIA) annual survey of electric generators, natural gas-fired generators accounted for 43% of operating U.S. electricity generating capacity in 2019. These natural gas-fired generators provided 39% of electricity generation in 2019, more than any other source. Most of the natural gas-fired capacity added in recent decades uses combined-cycle technology, which surpassed coal-fired generators in 2018 to become the technology with the most electricity generating capacity in the United States.

Technological improvements have led to improved efficiency of natural gas generators since the mid-1980s, when combined-cycle plants began replacing older, less efficient steam turbines. For steam turbines, boilers combust fuel to generate steam that drives a turbine to generate electricity. Combustion turbines use a fuel-air mixture to spin a gas turbine. Combined-cycle units, as their name implies, combine these technologies: a fuel-air mixture spins gas turbines to generate electricity, and the excess heat from the gas turbine is used to generate steam for a steam turbine that generates additional electricity.

Combined-cycle generators generally operate for extended periods; combustion turbines and steam turbines are typically only used at times of peak load. Relatively few steam turbines have been installed since the late 1970s, and many steam turbines have been retired in recent years.

natural gas-fired electric gnerating capacity by retirement year

Source: U.S. Energy Information Administration, Annual Electric Generator Inventory

Not only are combined-cycle systems more efficient than steam or combustion turbines alone, the combined-cycle systems installed more recently are more efficient than the combined-cycle units installed more than a decade ago. These changes in efficiency have reduced the amount of natural gas needed to produce the same amount of electricity. Combined-cycle generators consume 80% of the natural gas used to generate electric power but provide 85% of total natural gas-fired electricity.

operating natural gas-fired electric generating capacity in selected states

Source: U.S. Energy Information Administration, Annual Electric Generator Inventory

Every U.S. state, except Vermont and Hawaii, has at least one utility-scale natural gas electric power plant. Texas, Florida, and California—the three states with the most electricity consumption in 2019—each have more than 35 gigawatts of natural gas-fired capacity. In many states, the majority of this capacity is combined-cycle technology, but 44% of New York’s natural gas capacity is steam turbines and 67% of Illinois’s natural gas capacity is combustion turbines.

October, 19 2020
EIA’s International Energy Outlook analyzes electricity markets in India, Africa, and Asia

Countries that are not members of the Organization for Economic Cooperation and Development (OECD) in Asia, including China and India, and in Africa are home to more than two-thirds of the world population. These regions accounted for 44% of primary energy consumed by the electric sector in 2019, and the U.S. Energy Information Administration (EIA) projected they will reach 56% by 2050 in the Reference case in the International Energy Outlook 2019 (IEO2019). Changes in these economies significantly affect global energy markets.

Today, EIA is releasing its International Energy Outlook 2020 (IEO2020), which analyzes generating technology, fuel price, and infrastructure uncertainty in the electricity markets of Africa, Asia, and India. A related webcast presentation will begin this morning at 9:00 a.m. Eastern Time from the Center for Strategic and International Studies.

global energy consumption for power generation

Source: U.S. Energy Information Administration, International Energy Outlook 2020 (IEO2020)

IEO2020 focuses on the electricity sector, which consumes a growing share of the world’s primary energy. The makeup of the electricity sector is changing rapidly. The use of cost-efficient wind and solar technologies is increasing, and, in many regions of the world, use of lower-cost liquefied natural gas is also increasing. In IEO2019, EIA projected renewables to rise from about 20% of total energy consumed for electricity generation in 2010 to the largest single energy source by 2050.

The following are some key findings of IEO2020:

  • As energy use grows in Asia, some cases indicate more than 50% of electricity could be generated from renewables by 2050.
    IEO2020 features cases that consider differing natural gas prices and renewable energy capital costs in Asia, showing how these costs could shift the fuel mix for generating electricity in the region either further toward fossil fuels or toward renewables.
  • Africa could meet its electricity growth needs in different ways depending on whether development comes as an expansion of the central grid or as off-grid systems.
    Falling costs for solar photovoltaic installations and increased use of off-grid distribution systems have opened up technology options for the development of electricity infrastructure in Africa. Africa’s power generation mix could shift away from current coal-fired and natural gas-fired technologies used in the existing central grid toward off-grid resources, including extensive use of non-hydroelectric renewable generation sources.
  • Transmission infrastructure affects options available to change the future fuel mix for electricity generation in India.
    IEO2020 cases demonstrate the ways that electricity grid interconnections influence fuel choices for electricity generation in India. In cases where India relies more on a unified grid that can transmit electricity across regions, the share of renewables significantly increases and the share of coal decreases between 2019 and 2050. More limited movement of electricity favors existing in-region generation, which is mostly fossil fuels.

IEO2020 builds on the Reference case presented in IEO2019. The models, economic assumptions, and input oil prices from the IEO2019 Reference case largely remained unchanged, but EIA adjusted specific elements or assumptions to explore areas of uncertainty such as the rapid growth of renewable energy.

Because IEO2020 is based on the IEO2019 modeling platform and because it focuses on long-term electricity market dynamics, it does not include the impacts of COVID-19 and related mitigation efforts. The Annual Energy Outlook 2021 (AEO2021) and IEO2021 will both feature analyses of the impact of COVID-19 mitigation efforts on energy markets.

Asia infographic, as described in the article text


Source: U.S. Energy Information Administration, International Energy Outlook 2020 (IEO2020)
Note: Click to enlarge.

With the IEO2020 release, EIA is publishing new Plain Language documentation of EIA’s World Energy Projection System (WEPS), the modeling system that EIA uses to produce IEO projections. EIA’s new Handbook of Energy Modeling Methods includes sections on most WEPS components, and EIA will release more sections in the coming months.

October, 16 2020