Source: U.S. Energy Information Administration, Monthly Crude Oil and Natural Gas Production
As domestic production continues to increase, the average density of crude oil produced in the United States continues to become lighter. The average API gravity—a measure of a crude oil’s density where higher numbers mean lower density—of U.S. crude oil increased in 2017 and through the first six months of 2018. Crude oil production with an API gravity greater than 40 degrees grew by 310,000 barrels per day (b/d) to more than 4.6 million b/d in 2017. This increase represents 53% of total Lower 48 production in 2017, an increase from 50% in 2015, the earliest year for which EIA has oil production data by API gravity.
API gravity is measured as the inverse of the density of a petroleum liquid relative to water. The higher the API gravity, the lower the density of the petroleum liquid, meaning lighter oils have higher API gravities. The increase in light crude oil production is the result of the growth in crude oil production from tight formations enabled by improvements in horizontal drilling and hydraulic fracturing.
Along with sulfur content, API gravity determines the type of processing needed to refine crude oil into fuel and other petroleum products, all of which factor into refineries’ profits. Overall U.S. refining capacity is geared toward a diverse range of crude oil inputs, so it can be uneconomic to run some refineries solely on light crude oil. Conversely, it is impossible to run some refineries on heavy crude oil without producing significant quantities of low-valued heavy products such as residual fuel.
Source: U.S. Energy Information Administration, Monthly Crude Oil and Natural Gas Production
API gravity can differ greatly by production area. For example, oil produced in Texas—the largest crude oil-producing state—has a relatively broad distribution of API gravities with most production ranging from 30 to 50 degrees API. However, crude oil with API gravity of 40 to 50 degrees accounted for the largest share of Texas production, at 55%, in 2017. This category was also the fastest growing, reaching 1.9 million b/d, driven by increasing production in the tight oil plays of the Permian and Eagle Ford.
Oil produced in North Dakota’s Bakken formation also tends to be less dense and lighter. About 90% of North Dakota’s 2017 crude oil production had an API gravity of 40 to 50 degrees. The oil coming from the Federal Gulf of Mexico (GOM) tends to be more dense and heavier. More than 34% of the crude oil produced in the GOM in 2017 had an API gravity of lower than 30 degrees and 65% had an API gravity of 30 to 40 degrees.
In contrast to the increasing production of light crude oil in the United States, imported crude oil continues to be heavier. In 2017, 7.6 million b/d (96%) of imported crude oil had an API gravity of 40 or below, compared with 4.2 million b/d (48%) of domestic production.
EIA collects API gravity production data by state in the monthly crude oil and natural gas production report as well as crude oil quality by company level imports to better inform analysis of refinery inputs and utilization, crude oil trade, and regional crude oil pricing. API gravity is also projected to continue changing: EIA’s Annual Energy Outlook 2018 Reference case projects that U.S. oil production from tight formations will continue to increase in the coming decades.
Something interesting to share?
Join NrgEdge and create your own NrgBuzz today
Headline crude prices for the week beginning 9 September 2019 – Brent: US$61/b; WTI: US$56/b
Headlines of the week
Detailed market research and continuous tracking of market developments—as well as deep, on-the-ground expertise across the globe—informs our outlook on global gas and liquefied natural gas (LNG). We forecast gas demand and then use our infrastructure and contract models to forecast supply-and-demand balances, corresponding gas flows, and pricing implications to 2035.Executive summary
The past year saw the natural-gas market grow at its fastest rate in almost a decade, supported by booming domestic markets in China and the United States and an expanding global gas trade to serve Asian markets. While the pace of growth is set to slow, gas remains the fastest-growing fossil fuel and the only fossil fuel expected to grow beyond 2035.Global gas: Demand expected to grow 0.9 percent per annum to 2035
While we expect coal demand to peak before 2025 and oil demand to peak around 2033, gas demand will continue to grow until 2035, albeit at a slower rate than seen previously. The power-generation and industrial sectors in Asia and North America and the residential and commercial sectors in Southeast Asia, including China, will drive the expected gas-demand growth. Strong growth from these regions will more than offset the demand declines from the mature gas markets of Europe and Northeast Asia.
Gas supply to meet this demand will come mainly from Africa, China, Russia, and the shale-gas-rich United States. China will double its conventional gas production from 2018 to 2035. Gas production in Europe will decline rapidly.LNG: Demand expected to grow 3.6 percent per annum to 2035, with market rebalancing expected in 2027–28
We expect LNG demand to outpace overall gas demand as Asian markets rely on more distant supplies, Europe increases its gas-import dependence, and US producers seek overseas markets for their gas (both pipe and LNG). China will be a major driver of LNG-demand growth, as its domestic supply and pipeline flows will be insufficient to meet rising demand. Similarly, Bangladesh, Pakistan, and South Asia will rely on LNG to meet the growing demand to replace declining domestic supplies. We also expect Europe to increase LNG imports to help offset declining domestic supply.
Demand growth by the middle of next decade should balance the excess LNG capacity in the current market and planned capacity additions. We expect that further capacity growth of around 250 billion cubic meters will be necessary to meet demand to 2035.
With growing shale-gas production in the United States, the country is in a position to join Australia and Qatar as a top global LNG exporter. A number of competing US projects represent the long-run marginal LNG-supply capacity.Key themes uncovered
Over the course of our analysis, we uncovered five key themes to watch for in the global gas market:
Challenges in a growing market
Gas looks the best bet of fossil fuels through the energy transition. Coal demand has already peaked while oil has a decade or so of slowing growth before electric vehicles start to make real inroads in transportation. Gas, blessed with lower carbon intensity and ample resource, is set for steady growth through 2040 on our base case projections.
LNG is surfing that wave. The LNG market will more than double in size to over 1000 bcm by 2040, a growth rate eclipsed only by renewables. A niche market not long ago, shipped LNG volumes will exceed global pipeline exports within six years.The bullish prospects will buoy spirits as industry leaders meet at Gastech, LNG’s annual gathering – held, appropriately and for the first time, in Houston – September 17-19.
Investors are scrambling to grab a piece of the action. We are witnessing a supply boom the scale of which the industry has never experienced before. Around US$240 billion will be spent between 2019 and 2025 on greenfield and brownfield LNG supply projects, backfill and finishing construction for those already underway.50% to be added to global supply
In total, these projects will bring another 182 mmtpa to market, adding 50% to global supply. Over 100 mmtpa is from the US alone, most of the rest from Qatar, Russia, Canada, and Mozambique. Still, more capital will be needed to meet demand growth beyond the mid-2020s. But the rapid growth also presents major challenges for sellers and buyers to adapt to changes in the market.
There is a risk of bottlenecks as this new supply arrives on the market. The industry will have to balance sizeable waves of fresh sales volumes with demand growing in fits and starts and across an array of disparate marketplaces – some mature, many fledglings, a good few in between.
India has built three new re-gas terminals, but imports are actually down in 2019. The pipeline network to get the gas to regional consumers has yet to be completed. Pakistan has a gas distribution network serving its northern industrial centres. But the main LNG import terminals are in the south of the country, and the commitment to invest in additional transmission lines taking gas north is fraught with political uncertainty.
China is still wrestling with third-party access and regulation of the pipeline business that is PetroChina’s core asset. Any delay could dull the growth rate in Asia’s LNG hotspot. Europe is at the early stages of replacing its rapidly depleting sources of indigenous piped gas with huge volumes of LNG imports delivered to the coast. Will Europe’s gas market adapt seamlessly to a growing reliance on LNG – especially when tested at extreme winter peaks? Time will tell.
The point-to-point business model that has served sellers (and buyers) so well over the last 60 years will be tested by market access and other factors. Buyers facing mounting competition in their domestic market will increasingly demand flexibility on volume and price, and contracts that are diverse in duration and indexation. These traditional suppliers risk leaving value, perhaps a lot of value, on the table.
In the future, sellers need to be more sophisticated. The full toolkit will have a portfolio of LNG, a mixture of equity and third-party contracted gas; a trading capability to optimise on volume and price; and the requisite logistics – access to physical capacity of ships and re-gas terminals to shift LNG to where it’s wanted. Enlightened producers have begun to move to an integrated model, better equipped to meet these demands and capture value through the chain. Pure traders will muscle in too.
Some integrated players will think big picture, LNG becoming central to an energy transition strategy. As Big Oil morphs into Big Energy, LNG will sit alongside a renewables and gas-fired power generation portfolio feeding all the way through to gas and electricity customers.
LNG trumps pipe exports...
...as the big suppliers crank up volumes