The Utica Shale contains about 38 trillion cubic feet of undiscovered, technically recoverable natural gas (at the mean estimate) according to the first assessment of this continuous (unconventional) natural gas accumulation by the U. S. Geological Survey.
The Utica Shale has a mean of 940 million barrels of unconventional oil resources and a mean of 9 million barrels of unconventional natural gas liquids.
The Utica Shale lies beneath the Marcellus Shale, and both are part of the Appalachian Basin, which is the longest-producing petroleum province in the United States. The Marcellus Shale, at 84 TCF of natural gas, is the largest unconventional gas basin USGS has assessed. This is followed closely by the Greater Green River Basin in southwestern Wyoming, which has 84 TCF of undiscovered natural gas, of which 82 TCF is continuous (tight gas).
“Understanding our domestic oil and gas resource potential is important, which is why we assess emerging plays like the Utica, as well as areas that have been in production for some time” said Brenda Pierce, USGS Energy Resources Program Coordinator. “Publicly available information about undiscovered oil and gas resources can aid policy makers and resource managers, and inform the debate about resource development.”
The Utica Shale assessment covered areas in Maryland, New York, Ohio, Pennsylvania, Virginia, and West Virginia.
Some shale rock formations, like the Utica and Marcellus, can be source rocks – those formations from which hydrocarbons, such as oil and gas, originate. Conventional oil and gas resources gradually migrate away from the source rock into other formations and traps, whereas continuous resources, such as shale oil and shale gas, remain trapped within the original source rock.
These new estimates are for technically recoverable oil and gas resources, which are those quantities of oil and gas producible using currently available technology and industry practices, regardless of economic or accessibility considerations.
This USGS assessment is an estimate of continuous oil, gas, and natural gas liquid accumulations in the Upper Ordovician Utica Shale of the Appalachian Basin. The estimate of undiscovered oil ranges from 590 million barrels to 1.39 billion barrels (95 percent to 5 percent probability, respectively), natural gas ranges from 21 to 61 TCF (95 percent to 5 percent probability, respectively), and the estimate of natural gas liquids ranges from 4 to 16 million barrels (95 percent to 5 percent probability, respectively).
USGS is the only provider of publicly available estimates of undiscovered technically recoverable oil and gas resources of onshore lands and offshore state waters. The USGS Utica Shale assessment was undertaken as part of a nationwide project assessing domestic petroleum basins using standardized methodology and protocol.
Total announced that its subsidiary, Total E&P USA, has signed and completed on December 30, 2011 an agreement to enter into a Joint Venture with Chesapeake Exploration, a subsidiary of Chesapeake Energy Corporation, and affiliates of its partner EnerVest Ltd.
Yves-Louis Darricarrère, President, Total Exploration & Production, stated “Total is delighted to be building on our technical successes with Chesapeake in the Barnett Shale Joint Venture and to expand into the liquids-rich Utica Shale play in Ohio. This is consistent with our strategy to develop positions in unconventional plays with large potential and, in this case, with value predominantly linked to oil price. This joint venture will provide us with a material position in a valuable long-term resource base under attractive terms and with a top-class operator. Total is conscious of the environmental aspects linked to developing shale acreage and is confident in Chesapeake’s capacity to manage the Utica shale operations in a responsible manner, respecting the highest industry standards. ”
The transaction is effective as of November 1, 2011. Total has paid Chesapeake and EnerVest about USD 700 million in cash for acquiring these assets. Total will also be committed to pay additional amounts up to USD 1.63 billion over a maximum period of 7 years in the form of a 60% carry of Chesapeake and EnerVest’s future capital expenditures on drilling and completion of wells within the Joint Venture.
The Joint Venture covers approximately 619,000 net acres, of which 542,000 net acres are brought by Chesapeake and 77,000 net acres are brought by EnerVest. Total will acquire its 25% share from each of Chesapeake and EnerVest on identical terms, giving a total of 155,000 net acres. Chesapeake will operate the Joint Venture acreage.
As a result of the transaction, Total will also acquire a 25% share in any new acreage which will be acquired by Chesapeake in the liquids-rich area of the Utica shale play.
To date 13 wells have been drilled across the acreage with very promising results seen from each well in terms of productivity and liquid content. The Joint Venture plans to ramp up the drilling activities in the coming 3 years with 25 rigs planned to be mobilized by 2014 to fully appraise and develop the acreage. SEC production in Total’s share is expected to reach 100,000 barrels of oil equivalent per day by the end of the decade.
Additionally, Total, Chesapeake and EnerVest have agreed to jointly develop the construction of the necessary midstream facilities to export the production from this acreage.
- Who Is Chesapeake’s ‘Undisclosed’ Partner for Utica Shale JV? (forbes.com)
- Total enters shale-energy venture with Chesapeake (marketwatch.com)
- Stocks to Watch: Chesapeake, BP, Halliburton (thestreet.com)
- New Frontiers: the attention turns to some up-and-coming plays (mb50.wordpress.com)
- Total Said to Consider Chesapeake’s $2.14 Billion Ohio Shale (businessweek.com)
By Conway Irwin
Controversial estimates of potentially enormous new energy reserves highlighted by energy company strategists have sparked a wave of optimistic forecasts for fossil fuel development.
“We’re very much at the very, very, very beginning of the revolution, and we don’t even see where this is going yet.
“It won’t make sense to talk about unconventional,” Banaszak said. The Energy Information Administration (EIA) has forecast that shale gas’ share of US natural gas supply will rise to 46% in 2035 from 14% in 2009. “Even today it’s already, by some estimates, between 20% and 28% of the natural gas that’s produced in the United States,” Banaszak said.
The Novelty Of Shale Remains
Despite rapid development of the unconventional gas sector in the US, shale as a viable source of gas is still a relatively recent phenomenon. Both the ultimate volume of recoverable reserves, and their impact on domestic and global markets, remain to be seen.
Estimates of natural gas resources available in the United States has risen dramatically in recent years, and upward revisions continue. EIA estimates of potential shale gas resources in the US more than doubled in the agency’s 2011 Annual Energy Outlook from the year before, to 862 trillion cubic feet.
Banaszak compared these rising estimates to previous upward revisions in areas like the deepwater US Gulf of Mexico and Alaska’s Prudhoe Bay. “There’s definitely a pattern, as the industry operates in a new resource area, we learn more about it, we learn to understand it better, and estimates often change,” Banaszak said.
“We’re very much at the very, very, very beginning of the revolution, and we don’t even see where this is going yet. Any idea you have about where this is headed is probably still not fully informed, because we’re just still learning,” said Banaszak.
Unearthing Shale Liquids
The same trends of rising production volumes and reserve estimates may be emerging in liquids-rich onshore unconventional fields.
“It is an area where a lot of progress is being made,” EIA deputy administrator Howard Gruenspecht told AOL Energy.
Gruenspecht highlighted the Bakken Shale, which spans parts of North Dakota, Montana, and Saskatchewan in Canada, and the Eagle Ford in Texas, as among the most prominent of US onshore oil plays. He also noted prospects for the Utica Shale, which spans parts of the US midwest and northeast, as well as Quebec.
The Utica “has not provided significant production growth yet, but there is certainly a lot of talk that this will be a liquids-heavy resource,” Gruenspecht said.
A study by the National Petroleum Council, an advisory group that represents oil and gas industry views, suggested that at the high end of the spectrum, tight “shale” liquids plays in the US and Canada could hold recoverable resource potential of 10-20 billion barrels, and future production may exceed 1 million barrels per day.
But forecasting with any accuracy is as difficult for unconventional liquids as it has been for unconventional natural gas. “It’s very early days”, said president of consultancy Strategic Energy & Economic Research (SEER) Michael Lynch.
The large shale liquids deposits in the US — which Lynch said number “at least a dozen” — could collectively hold 100 billion barrels of oil in place, with around 1-3% recoverable. Even at low recovery rates, with such a large resource base, “1% means 1 billion barrels”, Lynch said. He suggested that each deposit could add 50,000 barrels per day each year once equipment and personnel are available.
And unconventional onshore oil reserve estimates may rise substantially as new discoveries are made and producers hone techniques to extract liquids from tight rock. “You’re going to get more recovery per well, lower costs, quicker times, and so forth”, Lynch said.
“Tight Race” Between Onshore and Offshore
Tapping oil and liquids from unconventional formations has already begun to impact US oil production, which rose in 2009 and 2010 after declining steadily since the mid-1980’s. But other sources of output, such as the deepwater Gulf of Mexico, may be equally important to future domestic production growth.
Oil production in North Dakota has risen sharply in recent years, recently surpassing 400,000 barrels per day, thanks in large part to the Bakken Shale. But “while the trend in North Dakota and the unconventional resources is certainly worthy of note, it does not replace the offshore Gulf, particularly the deepwater,” Gruenspecht told AOL Energy.
US offshore crude production from the Gulf of Mexico averaged 1.6 million barrels per day in 2010, accounting for almost one-third of total US oil production, according to the EIA. “We’re talking in North Dakota about production that’s well less than a third of the federal Gulf of Mexico production,” said Gruenspecht.
The NPC study lists potential recoverable oil resources in the US Gulf of Mexico at the high end of the range at 40-60 billion barrels — three-to-four times its estimates for unconventional “tight oil”. According to the NPC, production from the Gulf could rise to 3 million barrels per day in the near- to medium-term if discovered reservoirs yield commercial volumes and drilling returns to levels of activity seen prior to the 2010 oil spill from the Macondo well.
But Lynch foresees a “tight race” between production growth from US unconventional onshore plays and the deepwater Gulf of Mexico.
For shale liquids, “it seems like there’s a lot of potential, and the obstacles are relatively few”, Lynch said. Such obstacles could include new regulations that limit the use of hydraulic fracturing, or procuring sufficient hydraulic fracturing equipment to drill large numbers of wells.
In the deepwater drilling areas, companies’ push into new areas has the potential to unearth supergiant fields. “When you start talking about billion-barrel fields, that’s a lot of oil. And the implication is that if there’s one billion-barrel field, there are probably a lot more 400 million barrel fields,” he said.Related Articles
- USAEE: Framing The Debate Amid Constant Change (10/13/2011)
- From A Distance: US Output Grows, But Oil Imports Still Essential (10/13/2011)
- Follow the #usaeedc hashtag for conference coverage (10/10/2011)
- Big Oil: To Create Jobs, Let Us Drill More (9/08/2011)
- Exxon Mobil Signs Huge $500 Billion Deal For Russian Oil (8/30/2011)
- Natural gas shale play development now going global (mb50.wordpress.com)
- Since September 7, 2011… Do We Know Who Owns the Natural Gas in Shale in Pennsylvania? Now the Supreme Court of Pennsylvania must decide whether to hear this appeal. (marcellususa.com)
- New Frontiers: the attention turns to some up-and-coming plays (mb50.wordpress.com)
- China shifts interest in Canadian energy companies (calgaryherald.com)
If 2008 was the Year of the Shales, 2011 is shaping up to be the Year of Liquids-Rich Plays–and there are still four months to go.
A major recurring theme in second-quarter conference calls was oil companies’ news of positions amassed or initial test wells drilled in new shale and unconventional fields containing oil and natural gas liquids.
Plays such as the Tuscaloosa Marine Shale, Mississippi Lime, Lower Smackover/Brown Dense and Utica shales–both in Ohio and to the west in Michigan–are lining up to be the emerging fields of 2012 and 2013, analysts said.
“We’ll see a movement in some of these plays and it’s not going to slow down–if anything, it will be a pretty tight market for services, fracturing crews and pipeline access,” Michael Bodino, head of energy research for Global Hunter Securities, said.
Arguably, the Utica Shale was the showpiece of the quarter, particularly because its cachet resembles that of Northwest Louisiana’s giant Haynesville Shale, which took Wall Street by storm when Chesapeake Energy trumpeted it in March 2008.
Chesapeake again took the lead in showcasing the Utica late last month, relating the news that the play economically “looks similar, but is likely superior to the Eagle Ford Shale in South Texas…because of the quality of the rock and location of the asset” near eastern US population centers, CEO Aubrey McClendon said.
Like the Eagle Ford, which stands out as one of the US’ most sizzling shale plays at present, the Utica has oil and “dry” natural gas and “wet gas” (gas liquids) windows, he said.
Jeff Ventura, chief operating officer at Range Resources, which pioneered the Marcellus Shale in Pennsylvania, said his company already has drilled two Utica wells. At least on its acreage, Utica is at the bottom of a pancake stack of three play zones, with the Upper Devonian Shale on top and the Marcellus in the middle. The Upper Devonian shales contain about as much gas in place as the Marcellus zone, Ventura said, adding that the Marcellus gas field has been called one of the US’ largest.
Both Range and Chesapeake also have scored success in Northern Oklahoma’s Mississippi Lime play. “In the past year it has become more clear that we have a major play on our hands,” said McClendon, with Chesapeake holding 1.1 million acres there, running six rigs, aiming for 10 rigs by year-end and 30 to 40 by end-2014 or 2015.
Range’s Ventura suggested the play, found at relatively shallow depths of 5,000-6,000 feet, is also highly profitable; it boasts a 100% rate of return at $100/b oil, and he added that even at $90/b it yields a roughly 80% return. Range, which has completed seven horizontal wells, sees its main near-term activity there as nailing the optimal lateral length and well spacing.
Ventura said liquids make up 70% of a well’s recoverable hydrocarbons. McClendon estimated 415,000 barrels of oil equivalent per well, at an average finding cost to date of roughly $11/b, which he called “very, very attractive results.”
Meanwhile, in its late July conference call, Southwestern Energy CEO Steven Mueller said his company has acquired 460,000 net acres in an unconventional horizontal play targeting the Lower Smackover Brown Dense formation.
“This happens to be almost the exact same number of acres we had when we announced the Fayetteville Shale play back in August 2004,” Mueller said. That news kicked off an industry rush to that gas play, Mueller said.
But having reviewed the results of more than 70 wells that penetrated the Brown Dense zone, “we currently have more data about [it] than we had on the Fayetteville Shale when it was announced,” he said.
Mueller said the Brown Dense is an oil reservoir in Northern Louisiana and Southern Arkansas, at 8,000-11,000 foot depths and below the Haynesville Shale which is also a gas play. Brown Dense is “extensive over a large area and ranges in thickness from 300 to 530 feet,” he said.
Southwestern plans its first Smackover/Brown Dense well in Columbia County Arkansas, before the end of September, with a second well later in the year in Claiborne Parish, Louisiana.
In addition, Goodrich Petroleum in early August said it had begun drilling the Buda Lime, beneath the Eagle Ford. The small company averaged a respectable 900 boe/d oil from those wells, against 800 boe/d from its 11 Eagle Ford wells so far.
Rob Turnham, Goodrich chief operating officer, also touted the Tuscaloosa Marine Shale, along the horizontal Mississippi-Louisiana border, where both Encana and Devon Energy have large positions and are drilling wells. Tuscaloosa “has a lot of similarities to the Eagle Ford–similar permeability and porosity” of the rocks, he said. Goodrich will begin drilling in early 2012.
He said nine older wells in the play have flowed oil but “none of them have been properly stimulated.” If the vertical wells were to be taken horizontally several thousand feet, fractured with current technology, and properly stimulated, “we’re very optimistic,” said Turnham.–Starr Spencer in Houston
By Peter Staas 8/11/2011
As the shale oil and gas revolution has picked up steam over the past several years, several important trends have emerged that will separate the winners from the losers.
The combination of depressed natural gas prices in North America and robust oil prices has prompted independent producers to ramp up drilling activity in fields rich in oil, condensate and natural gas liquids (NGL) while reining in operations in Louisiana’s Haynesville Shale and other dry-gas plays. By many accounts, natural gas production has become incidental to these higher-value hydrocarbons.
Besides focusing on a company’s production mix, investors must also evaluate the economics and quality of a producer’s acreage. first movers in oil- and liquids-rich plays have the opportunity to snap up the best acreage at a fraction of the costs incurred by late entrants.
For example, Marathon Oil Corp (NYSE: MRO) recently paid $3.5 billion for 141,000 acres (about $21,000 per acre) in the Eagle Ford Shale from Hilcorp Resources Holdings LP. The deal surpassed the $16,000 per acre that Korea National Oil Corp paid to Anadarko Petroleum Corp (NYSE: APC) to establish a foothold in this liquids-rich shale play.
The elevated prices that latecomers have paid for acreage illustrate the importance of being an early mover in these plays. This strategy has paid off for EOG Resources (NYSE: EOG), the leading oil producer in North Dakota, the Eagle Ford Shale and the Niobrara Shale. Lower entry prices translate into more financial flexibility and superior margins for producers that snap up the best acreage at pre-boom prices.
Readers of The Energy Strategist can attest to the importance of focusing on early movers that have acquired the best acreage.
My colleague Elliott Gue added Petrohawk Energy Corp (NYSE: HK) to the publication’s model Portfolio on May 10, 2010, citing the company’s acreage in the Eagle Ford Shale, a liquids-rich field in South Texas that the firm discovered in 2008. The stock represented a compelling value at the time; investors had overlooked this asset and the potential for the firm to grow its liquids output, focusing instead on its leasehold in the Haynesville Shale and exposure to natural gas prices. Elliott also highlighted the stock as one of his top takeover targets of 2010.
A year later, Elliott’s investment thesis panned out: Australian mining giant BHP Billiton (NYSE: BHP) announced that it would acquire Petrohawk Energy in an all-cash deal worth $12.1 billion. Readers who followed Elliott’s call booked a 92 percent gain.
With these advantages in mind, producers are constantly on the lookout for the next liquids-rich shale play that offers attractive margins. Here’s a brief rundown of some of the emerging shale plays in which North American producers have accumulated acreage.
1. Tuscaloosa Marine Shale
In recent quarters, a handful of independent exploration and production (E&P) outfits have touted their acreage in the Tuscaloosa Marine Shale (TMS), a formation that stretches from Texas to Louisiana and Mississippi. The field is far from a new discovery; famed Mississippi wildcatter Alfred Moore spearheaded drilling in the TMS in the 1960s.
The play’s proximity to the Haynesville Shale should make it easier for producers to redirect drilling rigs from the out-of-favor dry-gas play and limits bottlenecks associated with a lack of midstream infrastructure. Despite boasting similar geologic characteristics to the Eagle Ford, the TMS is far from a slam dunk, which explains the low prices that early movers have paid to build an acreage position.
Goodrich Petroleum Corp (NYSE: GDP), for example, amassed about 74,000 acres, paying an average of $175 per acre. Meanwhile, Devon Energy Corp (NYSE: DVN) has accumulated 250,000 acres on the Louisiana-Mississippi border at an average cost of $180 per acre.
Thus far, early movers in the TSM have yet to report drilling results, though management teams have indicated that these tests have been encouraging. Devon Energy recently completed drilling, coring and logging its first vertical well in the play and plans to sink its first horizontal well later this year. Denbury Resources (NYSE: DNR) and its partner EnCana Corp (TSX: ECA, NYSE: ECA) are at a similar stage in their drilling program and plan to sink a horizontal well in September.
During EnCana’s conference call to discuss second-quarter results, Executive Vice-President Jeff Wojahn described its TMS assets as “a promising liquids-rich opportunity” based on “how the rock breaks, the hydrocarbon content and gas in place, and the like.” Management also pegged the drilling costs for its first horizontal well–a 12,000-feet deep vertical shaft with a 7,500-foot lateral segment–at about $8 million.
We’re very comfortable today with what we see from a geologic standpoint of going ahead and drilling wells. In fact we don’t really even see much need, at least in most of our acreage, for pilot holes. There [are] sufficient amounts of historical vertical wells that have been drilled through the Tuscaloosa Marine Shale that we’re comfortable going out and drilling today. I would characterize at least in our view that the sole or the largest single risk to the play is just one of the economic performance versus well costs. We know the Tuscaloosa is present, sufficiently thick, thoroughly oil saturated. It’s just a little unproven in that no one has drilled yet a well that’s demonstrated in the EUR horizontally that would match up to costs. And that’s just [be]cause there haven’t been really many or any of them out there that have done that.
Drilling results in this frontier play could provide a meaningful upside catalyst for these E&P operators. At the same time, if the play proves uneconomic to produce or drilling results disappoint, the low cost of acreage provides a degree of downside protection.
2. Utica Shale
Management teams from several E&P firms also touted the potential of the Utica Shale, a formation that lies beneath the Marcellus Shale but extends from Tennessee into Canada. Thus far, the Marcellus has attracted the most attention from investors and producers, though interest has picked up in the Utica–particularly the shallow portion in Ohio and Western Pennsylvania.
For example, Devon Energy has assembled an 110,000-acre leasehold in the play’s oil window and recently noted that a vertical test well indicated that the formation features excellent permeability. During Devon Energy’s conference call to discuss second-quarter results, the head of its exploration and production operations noted that the play’s oil window “could offer some of the best economics in the play.”
CEO Aubrey McClendon and his team at Chesapeake Energy (NYSE: CHK) likewise highlighted the firm’s position in the Ohio portion of the Utica during the company’s July 29 conference call. One of the first movers in the play, Chesapeake quietly amassed 1.25 million net acres–by far the largest position in the field–and drilled some of the first test wells, including nine verticals and six horizontals. Over this period, the company has also analyzed 3,200 feet of core samples and more than 2,000 well logs.
McClendon compared this portion of the Utica Shale to the Eagle Ford in South Texas, noting that the field includes three phases: a dry-gas zone in the east; a wet-gas window in the middle; and an oil-rich phase on the western side.
The outspoken CEO boldly suggested that the emerging field would generate better returns than the red-hot Eagle Ford: “[W]e believe the Utica will be economically superior to the Eagle Ford because of the quality of the rock and location of the asset.”
Not only is much of the company’s acreage already held by production, but the relative shallowness of these oil and gas reserves should limit drilling costs. Although management demurred from sharing well results, McClendon did indicate that his team was sufficiently encouraged to ramp up the rig count from one at the beginning of 2011 to eight units by year-end. At the same time, the play will require a substantial investment in midstream infrastructure to process and transport the oil, NGLs and natural gas to market.
3. Neuquen Basin
In The Future of Shale Gas is International, we opined that major international oil and natural gas companies were investing heavily in US shale plays to gain experience that would translate to fields outside the US. Argentina’s Neuquen Basin is home to one of the most-promising international shale oil plays.
Spanish energy giant Repsol (Madrid: REP, OTC: REPYY) in July announced that its Bajada de Anelo X-2 exploration well had yielded 250 barrels of oil per day from the Vaca Muerte shale formation.
US operator EOG Resources added 100,000 acres in the Neuquen Basin to its exploration portfolio in the second quarter and plans to sink two wells in this acreage in early 2012. During a recent conference call, CEO Mark Papa noted that he expected results from the play to help operators overcome a lack of hydraulic fracturing and other equipment in the country:
[T]he major service companies are in a process of shifting additional frac [hydraulic fracturing] equipment down there, and for the first couple wells, it’s going to be kind of one-off deals that we’ll have to schedule months and months in advance to get the fracs done. But our logic is if this shale turns out to be something that is commercial and productive, that you’ll see, particularly the major service companies, just move equipment in there in a 2013 through 2015 time frame. We’re pretty optimistic about the quality of that shale. We charged our people with the only way we’d go outside North America is if we could find a shale–an oil shale that we thought looked superior to the Eagle Ford, and we believe we’ve found one there. So time will tell.
August 3, 2011
Located along the Louisiana-Mississippi border, the Tuscaloosa Shale is stratigraphically equivalent to the Eagle Ford Shale in South Texas, which is producing oil, liquids and natural gas. Situated in 200- to 400-foot-thick formations, the Tuscaloosa Shale ranges from depths of 11,000 to 14,000 feet below the surface.
During the company’s first quarter announcements, Devon revealed that it had quietly bought 250,000 acres of leasehold from individuals in the Tuscaloosa Shale oil play in Louisiana. Paying $180 an acre, Devon serves as the operator of the effort.
With first drilling starting in May 2011, Devon has completed its first well into the source rock, an assessment well drilled vertically to gather information about the formation. The company completed drilling, coring and logging operations on the Lane 64-1 assessment well.
Devon has since spud its second well in the Tuscaloosa Shale; and this one is a horizontal well. The Beech 68-1H is updip from the first well, and Devon plans to obtain additional core and log data before drilling the lateral and completing the well as its first horizontal in the Tuscaloosa Shale.
“We will have to find out through drilling, but we think there’s some potential there because of the history of producing oil there,” Chip Minty, media relations manager for Devon told PennEnergy.
An innovator in shale development, Devon first became active in the Barnett Shale in Central Texas in 2001, when the company bought Mitchell Energy & Development Corp. 10 years ago. Devon was one of the first firms to employ horizontal drilling and hydraulic fracturing to extract hydrocarbons trapped in the tight formations.
Over the last year, Devon has also purchased acreage in the Utica Shale in Ohio and Michigan, as well as the Niobrara Shale play.