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Archive for the ‘Gulf of Mexico’ Category

Per our previous post, “Ominous signs for the future of Gulf of Mexico production,” Lars Herbst has plotted (below) deepwater GoM field discoveries dating back to the early days of deepwater drilling operations.

These are official USGS, MMS, and BOEM data (depending on the era) for field discoveries in >1000′ of water. Note that the last discovery was in March 2021.

This is a discouraging graphic given that the deepwater GoM is currently the only option for significant new US offshore production.

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For those interested in offshore history:

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Record low exploratory drilling: 2023 will be the third consecutive year with fewer than 50 deepwater exploratory well starts. The only other year this century with <50 deepwater exploratory well starts was 2010 when there was a post-Macondo drilling moratorium.

Low participation: Only 8 companies have started deepwater exploratory wells in 2023 YTD. Anadarko, Chevron, and Shell drilled 78% of the wells, with Shell alone accounting for 48%. Compare these numbers with 2001, when 24 companies drilled 149 deepwater exploratory wells.

Absence of new field discoveries: Per BOEM’s database, no deepwater fields have been discovered since March 2021 and there were only 3 discoveries in the past 5 years (see chart below)

Leasing and regulatory uncertainty: When will the 5 year leasing plan be finalized and how much will leasing be restricted? What will be the effect of the expanded Rice’s whale area on deepwater operations? To what extent is this expansion justified? What other legal and regulatory threats are on the horizon?

Unrealistic expectations regarding the “energy transition:” In a stunning introductory statement, the Proposed 5 Year Leasing Plan expressed concerns that new leases would produce too much oil and gas for too long. OPEC+ must love the way the US sanctions its own energy production, most notably the oil and gas resources of the OCS. More than 96% of the OCS is off-limits to oil and gas leasing, and the 5 year plan proposed to constrain leasing in the only areas that remain. The favored offshore wind program was intended to be a complement to, not a replacement for, the oil and gas program. Wind energy is limited by intermittency, space preemption, navigation, and wildlife protection concerns.

Some companies have visions of the GoM as a carbon dumping hub: The largest US oil company, which hasn’t drilled a well in the GoM in nearly 4 years and operates just one production platform, seeks praise and profit by sequestering CO2 beneath the Gulf while maximizing oil production elsewhere. How will this sustain economically and strategically important GoM oil and gas production?

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For the first time in the history of the US OCS program, Federal ontracts have been awarded for the decommissioning of facilities in the Matagorda Island area of the Gulf of Mexico. The use of taxpayer funds for this purpose should be an embarrassment for the offshore industry and its regulators, past and present.

Rather than touting these contracts, the regulators should be explaining how this happened and how it will be prevented in the future. Fortunately, BOEM’s proposed decommissioning financial assurance rule is open for comment until the end of this month, so we have an opportunity to provide input.

Matagorda Island Gas, the company whose wells the public will be plugging, had a poor compliance record, and is another example of why compliance should be a primary factor in determining supplemental financial assurance requirements.

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Gulf of Mexico 2023 oil production has dipped over the past 2 months, and is down 10% since January.

2023 production is reasonably well aligned with the EIA forecast which shows new production being offset by declines in existing fields.

Last year, BOEM forecast that production would average 2.0 million bopd in 2023. That forecast was justification for curtailing BOEM’s Proposed 5 Year Leasing Program. For the first time in the history of the OCS program, the primary concern of the program managers was that production might be too high for too long! This stunning quote from the 5 year leasing plan explains why so few lease sales were proposed:

BOEM’s short-term (20-year) production forecast for existing leases shows steady growth from 2022 through 2024 and declining thereafter (see Section 5.2.1)The long-term nature of OCS oil and gas development, such that production on a lease can continue for decades makes consideration of future climate pathways relevant to the Secretary’s determinations with respect to how the OCS leasing program best meets the Nation’s energy needs.

5 Year Leasing Program, p. 3

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Per the DOI regulatory agenda published on 7/27/2023 (excerpt below), the final BSEE well control rule was published in June. Of course, that did not happen, but the update tells us that the final rule should be published soon. The delay is probably in the internal review process which moves at the pace of continental drift 😉.

BOE comments on the proposed rule are attached here.

12. Oil and Gas and Sulfur Operations in the Outer Continental Shelf-Blowout Preventer Systems and Well Control Revisions [1014–AA52]

Abstract: This rulemaking revises the Bureau of Safety and Environmental Enforcement (BSEE) regulations published in the 2019 final rule entitled “Oil and Gas and Sulfur Operations in the Outer Continental Shelf-Blowout Preventer Systems and Well Control Revisions,” 84 FR 21908 (May 15, 2019), for drilling, workover, completion and decommissioning operations. In accordance with Executive Order (E.O.) 13990 (Protecting Public Health and the Environment and Restoring Science to Tackle the Climate Crisis) and the E.O.’s accompanying “President’s Fact Sheet: List of Agency Actions for Review,” BSEE reviewed the 2019 final rule and is updating to subpart G of 30 CFR part 250 to ensure operations are conducted safely and in an environmentally responsible manner.

Timetable:

ActionDateFR Cite
NPRM09/14/2287 FR 56354
NPRM Comment Period End11/14/22
Final Action06/00/23
Final Action Effective07/00/23

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In the Gulf of Mexico, deepwater leases produce large volumes of oil and gas from only a few surface facilities that are relatively distant from shore.

The Gulf of Mexico encompasses approximately 617,800 square miles and stretches 932 miles across from east to west. BOEM’s deepwater bathymetry grid of the northern Gulf of Mexico, created using 3D seismic data, covers more than 90,000 square miles (colored area in figure below). In this vast area, only 59 surface facilities produce ~1.7 million bopd and 2.2 bcfd.

The 59 deepwater facilities are comprised of:

  • 6 fixed platforms in water depths from 1023 to 1353′
  • 2 compliant towers (1648 and 1754′)
  • 17 tension leg platforms and mini-TLPs (1500-5185′)
  • 18 spars (1930-7835′).
  • 13 production semisubmersibles (aka floating production units; 3280-7400′)
  • 2 fpso’s (8300 and 9560′) and a mobile production unit (2200′)

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Attached is a settlement agreement between NOAA and 4 NGOs that could have major implications for deepwater oil and gas operations in the Gulf of Mexico.

As background, the Rice’s Whale (formerly Bryde’s whale) area has been expanded (see map above) such that it fences off deepwater leases by creating a barrier to vessel transportation. The expansion is based on a single study that concluded that Rice’s whales were “the most plausible explanation” for moan calls observed in the northwest GOM shelf break area. No Brice’s whales were sighted in the expanded area during this study. The authors do point to a 2017 sighting offshore Corpus Christi, which is apparently the only actual sighting of a Brice’s whale along the NW GoM shelf break.

The settlement agreement commits BOEM, presumably with their concurrence, to exclude the expanded area from future leasing, to issue a Notice to Lessees and Operators (exhibit 1 below) and to attach stipulations to new leases (exhibit 2). Because BOEM’s authority to impose major new requirements without proposing a regulation for public review and comment is questionable, the Notice (NTL) describes the restrictions as “recommended measures.” However, the liability risks associated with the failure to comply with this “guidance” would be unacceptable to most companies. Adding to the muddle, the language in the lease stipulation differs by making it perfectly clear that compliance is required.

The most troubling restriction from an operational standpoint:

To the maximum extent practicable, lessees and operators should avoid transit through the Expanded Rice’s Whale Area after dusk and before dawn, and during other times of low visibility to further reduce the risk of vessel strike of Rice’s whales.

Comments:

  • Deepwater facilities are typically far from shore, and a requirement to transit only between dusk and dawn, particularly in the winter, is unrealistic and onerous. This is further complicated by the speed limit provision.
  • Those who have worked offshore know that periods of low visibility are unpredictable and can extend for days. The low visibility transit restriction is thus highly punitive and increases operational risks on the vessels and at the facilities they serve.
  • The vague “to the maximum extent practicable” caveat provides little comfort for planners, managers, and crews, and is a de facto acknowledgement that the requirement is unreasonable.
  • These restrictions, coupled with the required Automatic Identification System data, open the door to endless challenges, especially given the keen interest of the litigious organizations that are parties in the settlement agreement.
  • Deepwater GoM operations are few in number and highly dispersed, which is a more important mitigating factor than those included in the agreement. More on this tomorrow.
  • In addition to the deepwater operations that will be much more difficult to supply, there are currently 81 production platforms within the expanded Rice’s whale area (100 to 400 m water depth).These include important facilities like Amberjack, Cognac, Cerveza, and Lobster. What are the implications for these platforms? Will they be required to have full-time whale observers? Can they only be supplied during daylight hours with good visibility? Why not consider using these platforms as bases for more definitive studies?
  • Further to the previous point, there are 103 existing leases in the 100-400 m depth zone that is now excluded from leasing? 90 of these leases are still in their primary term, and 21 were issued in the past 2 years. How will the contractual rights of these leaseholders be protected? (In fact, the value of all 1550 active leases in >100 m water depth is affected by this agreement.)
  • Have BSEE and Coast Guard been consulted on the practicality and safety implications of these requirements?
  • Deepwater operations have been ongoing in the GoM for 50 years, and there is no apparent evidence of impacts to this species. Why can’t the consultation process and any necessary followup studies be completed before decisions are made regarding operating restrictions?
  • These types of restrictions, coupled with the diminished state of the Strategic Petroleum Reserve and tightening oil markets, raise serious energy security and economic concerns.

Finally, BOEM’s third footnote in the NTL (pasted below), doesn’t demonstrate great confidence in the need for the onerous requirements that are being imposed.

This is not meant to be construed as a blanket determination as to whether BOEM, at present, has determined that there is a “reason to believe” that incidental take may occur, within the meaning of the ESA, the consultation regulations, or BOEM’s regulations. Those decisions will be made on a case-by-case basis in accordance with BOEM regulations referenced below.” Comment: Huh??? How are these blanket restrictions case-by-case, and how are they being imposed without public review?

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BOEM’s Final Sale Notice for the upcoming Gulf of Mexico wind auction identifies 3 lease areas (see map below). Wind operations in these areas should not significantly conflict with other GoM activities, including oil and gas operations.

Those who followed Exxon’s recent lease acquisitions may be amused by the map below from BOEM’s siting analysis document. The 94 Exxon leases acquired at Oil and Gas Lease Sale 257 (yellow blocks) are misidentified as “Carbon Capture Lease Blocks.” As has been discussed at length on this blog (most recently here), Sales 257 and 259 were oil and gas lease sales. Although Exxon’s intentions are now well known, they may not conduct carbon sequestration operations on these leases unless they are competitively reissued or converted. (Is BOEM’s siting document implying that conversion of the Exxon leases is a fait accompli?) The regulations for such conversions, and for CCS operational activities, have yet to be promulgated. A draft of these regulations is expected later this year, and the comments should be spirited and diverse.

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World Bank flaring data have some limitations as discussed in a previous BOE post. However, they provide an objective means of estimating and comparing flaring volumes worldwide, and therefore merit close attention.

The latest World Bank data tell us that significant gas flaring issues persist. Worldwide, 138,549 million m3 of gas were flared in 2022. This equates to a massive 4 tcf, the equivalent of the reserves in a major gas field and more than 5 times the total gas production in the Gulf of Mexico in 2022.

The top ten “flarers” are listed below. Each of these fields flared from 19 to 42 bcf. For comparison, the top ten GoM gas producers in 2022 produced 10 to 57 bcf, so single fields are flaring more than GoM companies are producing in total. Assuming for discussion purposes a gas-oil ratio of 1000 cu ft/bbl, all of the gas associated with 19 million to 42 million barrels of oil production was wasted from each field.

Posted below are the World Bank’s flaring intensity data (m3 of gas flared per bbl of oil produced) for the 10 countries with the highest flaring volumes. Venezuela’s flaring intensity rose to 44.6 m3/bbl in 2020, before declining moderately the following 2 years. 44.6 m3/bbl equates to 1575 cu ft/bbl. This gas flaring to oil production ratio implies that a very high percentage of Venezuela’s associated gas production was flared.

Here in North America, we have flaring issues of our own. Mexico’s Cactus Field is a top ten flarer (first table above) with 534.5 million m3 flared in 2022. The World Bank also lists 6 Permian Basin fields with >50 million m3 of gas flared in 2022.

Zeroing in on the US/Canada offshore sectors, fields with >1 million m3 of gas flared (2022) are listed below. Four of the top 7 are offshore Alaska and Newfoundland where the gas cannot currently be marketed and reinjection, field use, and flaring are the only options. Can production from these fields be better managed to reduce flaring volumes?

fieldoperatorm3 (millions)f3 (millions)
White Rose (Nfld)Cenovus41.691472
Hibernia (Nfld)HMDC40.991448
ShenziBHP31.341107
Northstar (AK)Hilcorp11.23397
ConstitutionOxy10.76380
PompanoTalos10.54372
Endicott (AK)Hilcorp10.07356
UrsaShell8.19289
MarmalardMurphy6.62234
LuciusOxy3.09109
MarlinOxy3.08109
MarsShell2.278
HolsteinOxy1.4852

The extraordinary 1.1 bcf of gas that was flared at the Shenzi field may help explain the large (1 bcf) increase in oil well gas flaring in the Gulf of Mexico in 2022. Based on the World Bank data and ONRR data for the GoM, Shenzi accounted for 16% of GoM oil-well gas flaring in 2022. As noted in that post, more regulator/industry transparency on lease and field specific flaring is needed. ONRR’s posting of flaring and venting data is a positive step, but it doesn’t include lease specific data and doesn’t explain major flaring episodes.

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