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Posts Tagged ‘Gulf of America’

Exxon to relinquish carbon disposal leases! Repsol should do the same!

Posted in CCS, energy policy, Gulf of Mexico, Regulation, tagged , , , , , on July 2, 2026| Leave a Comment »

Gulf of America lease map: 199 oil and gas leases were wrongfully acquired for carbon disposal purposes. At Sale 261, Repsol acquired 36 nearshore Texas tracts in the Mustang Island and Matagorda Island areas (red blocks at the western end of the map above). Exxon had acquired 163 nearshore Texas tracts (blue in map above) at Sales 257 (94) and 259 (69).

As expected, the carbon disposal era in Federal offshore waters is ending before it began, and rightfully so.

Energy Intelligence is reporting that Exxon is relinquishing “more than 160 leases” in nearshore Federal waters off Texas. The actual number of oil and gas leases that the company improperly acquired for carbon disposal purposes is 163 (map above).

The reason being cited for the lease relinquishments is that the Dept. of the Interior has shelved regulations for carbon disposal on the OCS. Kudos to the DOI officials responsible for that decision. Carbon disposal has the support of no one except the companies that hope to profit from it. Further, there is no scenario under which Interior could have allowed these wrongfully acquired oil and gas leases to be converted to carbon disposal leases.

Now that these carbon disposal leases are being relinquished, it would be nice to see Exxon start acquiring OCS oil and gas leases for their intended purposes. Exxon and Mobil are historic Gulf operators who were once important contributors to the success of the OCS program.

History of the Exxon and Repsol CCS lease acquisitions.

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New Gulf oil production record set in April; Sable boosts Pacific production

Posted in California, Gulf of Mexico, Offshore Energy - General, tagged , , , , , , on June 30, 2026| Leave a Comment »

Per the preliminary EIA data for April, Gulf of America OCS facilities produced an average of 2.107 million bopd in April. This surpasses the previous record of 2.060 million bopd set in January.

Meanwhile, the Sable bump is now evident in the EIA’s Pacific OCS production data with a ~50% March-April increase from January-February. A bigger increase should be apparent when the May numbers are posted. How will Sable fare in the upcoming court battles?

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Part 2: Gulf of America flaring and venting (2019-2025) – charts and summary table

Posted in climate, flaring and venting, Gulf of Mexico, natural gas, Offshore Energy - General, tagged , , , , , , on June 29, 2026| Leave a Comment »

Part 1

Gulf of America flaring and venting data for 2019-2025 are summarized in the attached table. The preferred performance indicators are the percentages of produced gas that are flared and vented both for oil-well gas (OWG, also known as associated or casinghead gas) and gas-well gas (GWG or non-associated gas).

The flaring and venting table was compiled using monthly data submitted to the Office of Natural Resources Revenue (ONRR). This is the best data source because reporting is mandatory and strictly enforced, and flaring and venting are accounted for separately. All volumes are in millions of cubic feet (MMCF).

The venting and flaring volumes are segmented for both OWG and GWG production. Venting produced gas (mostly methane) is a more significant environmental concern from both air quality and greenhouse gas (GHG) perspectives.

Observations and Comments:

  • The total volume of gas flared and vented in 2025 was 9.7 bcf (chart 1). 80% of that volume was flared, leaving 20% vented. OWG flaring (chart 5) reached a new high of 7.785 bcf in 2025, a near record oil production year for the Gulf.
  • Total venting and flaring in 2025 increased by 819 million cubic feet vs. 2024. However, the 7-year trend line remains favorable (chart 1).
  • Thinking that 2019, a record year for total flaring and venting, may have biased the trend line, I extended the chart back to 2015, the first year for which I have ONRR data. As you can see in chart 2, the overall trend is still favorable.
  • The % of produced gas that was flared or vented remains persistently above the historical 1.0% target (chart 3). Flared/vented volumes were below 1% of production prior to 2018.
  • The higher flaring/venting % may be because most gas production is now from oil wells, which typically have higher flaring rates associated with processing upsets.
  • The flaring and venting gap between GWG and OWG has narrowed, largely because of an increase in GWG flaring/venting. The combined rate for GWG more than doubled over the 7 year period, rising to 0.81% vs. 1.34% for OWG. (chart 3)
  • Total venting rose to 1.7 bcf in 2025, the highest venting volume in 3 years.
  • The % of GWG being vented doubled over the past 5 years to over 0.50% (chart 4). The growth in venting warrants further investigation.
  • The % of OWG vented increased slightly to 0.20%. Further reduction in OWG venting had been expected given that OWG production is increasingly from deepwater facilities with modern flaring systems.
  • A 2020 Univ. of Michigan study found “Large, older facilities situated in shallow waters tended to produce episodic, disproportionally high spikes of methane emissions. These facilities, which have more than seven platforms apiece, contribute to nearly 40% of emissions, yet consist of less than 1% of total platforms.” 
  • Platform specific data would be helpful in further assessing flaring/venting sources and trends.
chart 1
chart 2
chart 3
chart 4
chart 5

2025 flaring_venting – Sheet3Download

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Grateful for the Miocene!

Posted in Gulf of Mexico, Offshore Energy - General, tagged , , , , , , , on June 23, 2026| Leave a Comment »

My colleague Keith Meekins shared an informative AAPG article about the importance of Miocene reservoirs in offshore oil and gas production worldwide.

“The Miocene delivered a significant amount of sand with excellent reservoir characteristics around the world,” noted Erik Scott, exploration geologist and consulting geologist/sedimentologist.

“Generally, hydrocarbons are coming from deeper, older rock – the Cretaceous, the Jurassic. By the time these source rocks get to the (hydrocarbon) generation window, the Miocene reservoirs are in place,” Scott said.

“Generally, the Miocene deposits are surrounded by fine-grained muds that produced sealing potential,” he noted.

More:

  • Miocene reservoirs account for more than 40 percent of established hydrocarbon reserves in the deepwater Gulf. The Bureau of Ocean Energy Management identifies more than 9 billion barrels of undiscovered, technically recoverable Miocene resources.
  • Recently, Eni found a giant Miocene natural gas accumulation in the Kutei Basin offshore Indonesia with an estimated 5 trillion cubic feet of gas and 300 million barrels of condensate in place.
  • Azule Energy, equally owned by Eni and BP, made a recent Miocene oil discovery with an estimated 500 million barrels of crude offshore Angola.

Keith points to RTM (reverse-time migration) as an important factor in helping to unlock Miocene resources. RTM produces dramatically improved images below salt bodies and in areas of complex overburden. Per AAPG, Talos Energy used reprocessed RTM seismic to identify a bypassed Miocene fault-block closure in the Green Canyon Area of the Gulf. This structure had previously been invisible.

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Gulf of America flaring and venting, 2019-2025 (Part 1)

Posted in Gulf of Mexico, energy policy, flaring and venting, tagged , , , , on June 17, 2026| Leave a Comment »

Minimizing flaring and venting is important from both environmental and resource conservation standpoints. Flaring and venting volumes are also good indicators of how well production systems are designed, managed, and maintained.

Updated flaring and venting volumes for the Gulf of America have been compiled using monthly data submitted to the Office of Natural Resources Revenue (ONRR). This is the best data source because reporting is mandatory and strictly enforced, and flaring and venting are accounted for separately.

Below are a few summary charts. Completed tables, similar to those posted for 2024, will be attached for sharing at a later date.

Total venting and flaring (fig. 1) in 2025 increased by 819 million cubic feet (mmcf) vs. 2024. However, the 7-year trend line is still favorable. Thinking that 2019, a record flaring year, may have biased the trend line, I extended the chart back to 2015, the first year for which I have ONRR data. As you can see in the second chart, the trend is still favorable.

80% (7785 mmcf) of the total gas flared and vented in 2025 (9741 mmcf) was flared from oil wells (chart below). That’s unsurprising given that most of the Gulf’s gas production is from deepwater oil wells, and flaring rates are higher for oil wells than for gas wells.

The best performance indicators are the normalized data (i.e. percentages of produced gas that are flared and vented both for oil wells and gas wells). Overall (chart below), flaring and venting volumes remain stubbornly above 1.0% of total gas production, the historical target last achieved in 2015. I’ll separate venting and flaring for both oil and gas wells in a future post.

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The events that led to the Strategic Petroleum Reserve also drove the rapid expansion of the offshore program

Posted in Alaska, California, energy policy, Georges Bank, Gulf of Mexico, Offshore Energy - General, tagged , , , , , , , , , on June 5, 2026| 2 Comments »

Nothing tilts public opinion more than high gasoline prices, or worse yet shortages! Hence the 1975 legislation establishing the SPR, the massive SPR drawdown in 2022, and this year’s withdrawals.

Looking back to the halcyon days of the US offshore program, it was the gas lines in the 1970s that drove the remarkable and rather unlikely growth in the program during the Carter Administration (1977-1981). A few highlights from those four years:

  • 15 lease sales including 3 offshore Alaska, 3 in the Atlantic, and 1 offshore California
  • Drilling activity in all 4 regions: GoM, Pacific, Alaska, and Atlantic
  • Natural gas discovery in the Mid Atlantic (Hudson Canyon Unit)
  • North, Mid, and South Atlantic District offices for permitting and inspections
  • 5300 well starts including 97 in water depths > 1000′
  • 314 new platforms including Cognac, the world’s first platform in > 1000′ of water

Perhaps unthinkable today, the Governor of Massachusetts from 1979-1983, Ed King, was a strong supporter of offshore drilling. Absent that support, the exploratory drilling on Georges Bank would probably have never occurred. /s/ Nostalgic Old Man 😉

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Federal oil and gas leasing: onshore program surges to the forefront

Posted in Gulf of Mexico, energy policy, tagged , , , , , , on May 26, 2026| Leave a Comment »

Delaware Basin sale parcels mostly in NM
Lea and Eddy counties, NM

The Federal onshore oil and gas program was always secondary to the offshore program, at least in the opinion of those of us who worked in the offshore program 😉. That was before the shale era revolutionized US energy production.

The onshore program is now free to flex 💪 following recent sale results, most notably last week’s impressive BLM New Mexico sale that featured the Delaware Basin. See the attachment for details.

The table below compares the last two Big Beautiful Gulf sales and the record 2008 Gulf of Mexico sale with the BLM NM sale. Most astonishing is the record $357,129 per acre bid for a single NM tract. Devon Energy, which exited the Gulf in 2010, was the mega-bidder acquiring 24 tracts for $2.6 billion! (Devon is still bogged down in the Hogan/Houchin decommissioning dispute in the Pacific, a case which should temper enthusiasm for relaxed lease assignment and financial assurance policies.)

The attractiveness of the Permian, Delaware, and similar onshore basins has been greatly enhanced by vastly improved drilling and well completion technology. The short lead times to first production are a big advantage relative to offshore development.

The total high bids for Gulf Sale 206, which dwarfed the BBG1 and 2 sales, are still a Federal oil and gas leasing record when converted to 2026 dollars, but the sale area was much larger than for the NM sale.

Saledatetracts bid onacres bid ontotal high bidshighest bid/acre
BLM NM5/20/20267433,529$4,007,609,288$357,129
BBG2 3/11/202625140,753$46,976,423$3,647.57
BBG1 12/10/20251811,023,526$300,425,222$3,227.79
2067/21/20086153,323,047$3,677,688,245
($5.7 million in
2026 dollars)		$18,333.47
($28,300 in 2026 dollars)
The royalty rate on Sale 206 leases is 18.75%, versus 12.5% for the other 3 sales.
Efficient Markets Spring 2026 BLM Lease Sale MaterialsDownload

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Lease Sale BBG2 now two blocks smaller; “sweet spot” leases awarded

Posted in Offshore Energy - General, Gulf of Mexico, energy policy, tagged , , , , , , , , on May 20, 2026| Leave a Comment »

BBG2 – Big Beautiful Gulf, small lease sale

BOEM has completed their Sale BBG2 bid evaluations, and 2 of the 25 high bids were rejected, further shrinking the sale’s already small footprint. That’s a high rejection rate when compared with Sale BBG1 (3 of 181 bids rejected).

Although BOEM’s decision matrix has not yet been posted, a comparison of the acceptances with the bids submitted tells us that the Keathley Canyon Block 828 ($1,101,202) and Atwater Valley Block 63 ($650,018) bids were rejected.

Both of the rejected bids were submitted by LLOG, partnering with 4 other companies on the Atwater Valley block. LLOG’s high bids on 3 other blocks were accepted, so their rejection rate was 40%. Interestingly, 2 of the 3 BBG1 rejected bids were also submitted by LLOG.

There is no shame in bid rejections, which are part of the legislated leasing process. Why pay more than you have to (or think a block is worth)? A bid rejection may attract future competition, but otherwise the only downside is that you don’t get a lease that you can possibly acquire at another sale if desired (an advantage of regular, predictable lease sales).

BOEM is charged with making fair market value determinations and their process and decisions are publicly available. Of course, opinions differ on the value of an unexplored lease. We will see what the bidding on the BBG1 and BBG2 rejections looks like in future sales.

BOEM did accept the the high bids for the BBG2 “sweet spot” blocks (red in map below; also see the table) in the Green Canyon Area of the Gulf. These 4 blocks accounted for 17 of the sale’s 38 bids (45%) and $32.8 milion of the sale’s $47 million in high bids (70%). BP’s $21 million bid for GC 404 was by far the sale’s highest bid.

red=blocks receiving bids at BBG2; blue=BBG1 and Sale 261 leases; green=active leases issued prior to Sale 261
Green Canyon
Block No.		No. of biddersHigh BidderBid
4045BP$21,009,990
4052BP$885,990
4485Chevron$4,967,067
4925Chevron$5,887,188

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Upon further review, 2019 retains the Gulf oil production record. Jump in California OCS production upcoming.

Posted in Offshore Energy - General, California, Gulf of Mexico, tagged , , , , on May 4, 2026| Leave a Comment »

Update: Another EIA revision to Gulf of America oil production for Dec. 2025 (1.994 to 1.985 million bopd) means that 2019 retains the production record by the narrowest of margins – 1.898 to 1.897 million bopd. Stay tuned because this may not be the final word 😉.

Per EIA, Feb. 2026 production dipped a bit to 1.931 million bopd (chart below).

Meanwhile, California OCS oil production for FEB continued at about 10,000 bopd. This number may increase a bit for March, and more for April data when the first Sable sales are included. A big increase, by as much as 500%, should be apparent in the June report barring a court ordered shutdown.

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“Back to the Future”- 1947 Oil and Gas is the Gulf’s newest operator

Posted in Offshore Energy - General, Regulation, Gulf of Mexico, tagged , , , , , , , , , , on April 22, 2026| Leave a Comment »

1947 Oil and Gas is a great name choice given that the first offshore oil well beyond the sight of land was completed in 1947 (see photo). The numeric name choice is reminiscent of historically important team names like the San Francisco 49ers and the Philadelphia 76ers.

The name is especially fitting given that 1947’s first acquisition, Renaissance Offshore, operates entirely on the Gulf shelf (map below). Renaissance is a significant shelf producer ranking 19th among all Gulf operators in both oil (791,572 bbls) and gas (1,335,009 mcf) production in 2025. Renaissance ranked 6th in oil production and 7th in gas production among companies that focus on the shelf.

A challenge for 1947 will be improving Renaissance’s compliance and safety record:

  • In 2025, Renaissance was one of only four companies that operated more than 10 shelf platforms and had INC/facility inspection ratios >1.0.
  • Renaissance has averaged 0.93 violations (INCs) per inspection since 1/1/2020, trailing only Cox legacy Array in INC frequency.
  • In 2019, a worker fell to his death at the Renaissance Eugene Island 331 B platform. BSEE’s investigation found that Renaissance failed to maintain all of its walking and working surfaces in a safe condition, that supervisors failed to promptly correct or prevent employees from accessing the uncorrected and uncontrolled walking and working surface hazard area, and that Renaissance and its contractors failed to follow the agreed upon terms and conditions within their respective Safety and Environmental Management Systems (SEMS) bridging arrangements. (Renaissance incurred a seemingly modest $105,292 civil penalty for this incident. There is no public information on any settlement with the victim’s family.)

“Between 2012 and 2014 Renaissance grew substantially with the acquisition of sixteen Gulf of Mexico producing fields, fifteen of which are operated and most are 100% owned.” 1947’s financial strength is unclear. Hopefully, BOEM will verify that satisfactory decommissioning financial assurance arrangements are in place before any lease assignments are approved.

Renaissance operations being acquired by 1947 Oil and Gas

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