DEAL ALERT (HARBOUR BUYS LLOG)
Research/Study
All Standard Disclaimers Apply & Seller Rights Retained

SPECIAL REPORT (DEC 24, 2025)
$3.2B: $2.7B Cash Plus $0.5B Equity
Enters U.S. Gulf At Scale With Operations
34,000 Boepd WI (~80% Oil)
27,600 Boepd Net (est. 18.75% Royalty)
3 Deepwater Hubs (~90% Of Assets)
Keathley Canyon and Mississippi Canyon
Production Doubling By 2028
Harbour Has Been Seeking Right Entry
LLOG Offers Growth And Successful Team
500 MMboe of Resources (2P + 2C)
Adds to North Sea, Argentina, Mexico Gulf
Brings Harbour Vols to 500,000 Boepd
LLOG Assets Provide Path to Sustain Vols
Shell Looked But Deal More Than Just Price
DOWNLOAD OUR 5-PAGE ALERT
RS 2522DA
Energy Advisors Group (EAG) has issued a Deal Alert, analyzing Harbour Energy, Europe's largest independent, deal to enter the U.S. Gulf of Mexico with a buy of LLOG Exploration. After years of seeking the right entry, Harbour worked hard to meet LLOG's priorities and remarked that the deal was more than just price. Earlier reports had Shell in advanced talks for the deal.
The $3.2 billion deal is effective October 1, 2025 with closing expected late Q1 2026 and is paid for with $2.7 billion in cash and $0.5 billion in Harbour stock.
Harbour likes the deal for LLOG's growth profile and historical exploration and execution success in the deepwater Gulf, particularly in the outboard Wilcox play. The assets are 100% operated and 90% are in three hubs, 2 in Keathley Canyon and 1 in Mississippi Canyon.
Current production of 34,000 Boepd (~80% oil) in working interest volumes (~27,600 Boepd net assuming 18.75% royalty) are expected to double by 2028. Future growth is supported by 500 MMboe in working interest resources (2P + 2C) with further exploration upside beyond that.
The deal is accretive to Harbour's metrics and boosts Harbour's global volumes to 500,000 Boepd with the LLOG asset's underpinning Harbour's ability to maintain these volumes. Harbour's existing assets are concentrated in the North Sea, Argentina and the Mexico side of the Gulf.
In other recent news, Harbour just secured operatorship from Pemex of the 750 MMboe Zama field discovered by Talos Energy in 2017 on the Mexico side of the Gulf and is expected to complete plans for an FID in 2026. Earlier work indicated Zama's potential to reach peak oil production of 180,000 Bopd by 2029.
Contents and Insights:
------ LLOG Stats: 27,600 net volumes assuming 18.75% royalty, 500 MMboe 2P + commercial 2C resources.
------ Key Assets: Deepwater hubs including Buckskin and Leon-Castille in Keathley Canyon and Who Dat in Mississippi Canyon plus decades of expertise and exploration success with the world-class LLOG team.
------ Favorable Economics: LLOG's assets bring a tax rate of 23% v. 78% of Harbour standalone which bodes well for increasing capital towards LLOG's growth assets.
Here are our quick takeaways from our report along w/ three slides.
Quick Quotes:
------- Finally the Right Deal. "Harbour had been seeking a Gulf entry for years and LLOG's profile checked the boxes compared to other opportunities that were generally more mature, lower quality, less growth and burdened by massive decommissioning liabilities."
------- Market Reaction: "Muted reaction with Harbour's stock initially slipping 1% and then down 5% after a few days."
------- Why it Matters: “The deal is significant. It immediately provides Harbour with the largest resources base in the U.S. Gulf among independents and ahead of OXY, Talos, Beacon, Murphy and Woodside."
-------Content: "We provide select Gulf of America historical transactions that shows Harbour's buy as the 4th largest in the Gulf and the first $1B deal since Talos acquired QuarterNorth's deepwater assets (ex-Fieldwood) for $1.3B in May 2024. We also look at LLOG's history since 1977 and its key NonOp partners."
------- Contrast: “The Gulf of America is attractive on the global stage for its stable and favorable regulatory and tax regime. Remarkably, Harbour's tax rate for its existing assets in the North Sea, Argentina and the Mexico side of the Gulf are a striking 78% compared to an effective 23% for LLOG's assets.”
------- Context: “The number of players in the Gulf of America has diminished over time yet the deepwater Gulf in the Miocene and particularly the Wilcox plays continues to deliver superb exploration results. Success requires a deep bench of technical expertise across the exploration, project execution and operating teams - which LLOG has solidly demonstrated over decades. While some view the deal as pricey based on current volumes the outlook for future growth is strong given LLOG's historical success and current position in the Gulf's most exciting plays."
Below are some excerpts from the Deal Alert
Page 1 Deal Highlights --

Page 2 Let's Look at the seller --

Page 5 Why it Matters --

The FULL 5-page report is available for download to the right.
Energy Advisors Group is working hard to expand our thought leadership leveraging our decades of industry expertise. We look forward to providing additional market insight for our clients through Market Monitor, Regional Perspectives, Deal Alerts and Quarterly M&A Outlook.
Our firm has been serving the needs of buyers, sellers and capital providers for over thirty-five years. We stand ready to assist asset owners in a competitive divestment process and to help buyers find off-market strategic assets for their portfolio. Call Rich Martin at 214-744-2495 or email rmartin@energyadvisors.com for a private consultation.
TO LEARN MORE:
Blake Dornak
Vice President
Phone: 713-600-0169
– Email: bdornak@energyadvisors.com
Brian Lidsky
Director-Research & Special Projects
Phone: 713-600-0138
– Email: blidsky@energyadvisors.com
IF YOU NEED ASSISTANCE downloading the full report or creating a login into our platform, contact:
Stephanie Epps
– Email: stephanie@energyadvisors.com
This article is for informational purposes only and not intended as financial advice. Please conduct your own research before investing.

SPECIAL REPORT (DEC 24, 2025)
$3.2B: $2.7B Cash Plus $0.5B Equity
Enters U.S. Gulf At Scale With Operations
34,000 Boepd WI (~80% Oil)
27,600 Boepd Net (est. 18.75% Royalty)
3 Deepwater Hubs (~90% Of Assets)
Keathley Canyon and Mississippi Canyon
Production Doubling By 2028
Harbour Has Been Seeking Right Entry
LLOG Offers Growth And Successful Team
500 MMboe of Resources (2P + 2C)
Adds to North Sea, Argentina, Mexico Gulf
Brings Harbour Vols to 500,000 Boepd
LLOG Assets Provide Path to Sustain Vols
Shell Looked But Deal More Than Just Price
DOWNLOAD OUR 5-PAGE ALERT
RS 2522DA
Energy Advisors Group (EAG) has issued a Deal Alert, analyzing Harbour Energy, Europe's largest independent, deal to enter the U.S. Gulf of Mexico with a buy of LLOG Exploration. After years of seeking the right entry, Harbour worked hard to meet LLOG's priorities and remarked that the deal was more than just price. Earlier reports had Shell in advanced talks for the deal.
The $3.2 billion deal is effective October 1, 2025 with closing expected late Q1 2026 and is paid for with $2.7 billion in cash and $0.5 billion in Harbour stock.
Harbour likes the deal for LLOG's growth profile and historical exploration and execution success in the deepwater Gulf, particularly in the outboard Wilcox play. The assets are 100% operated and 90% are in three hubs, 2 in Keathley Canyon and 1 in Mississippi Canyon.
Current production of 34,000 Boepd (~80% oil) in working interest volumes (~27,600 Boepd net assuming 18.75% royalty) are expected to double by 2028. Future growth is supported by 500 MMboe in working interest resources (2P + 2C) with further exploration upside beyond that.
The deal is accretive to Harbour's metrics and boosts Harbour's global volumes to 500,000 Boepd with the LLOG asset's underpinning Harbour's ability to maintain these volumes. Harbour's existing assets are concentrated in the North Sea, Argentina and the Mexico side of the Gulf.
In other recent news, Harbour just secured operatorship from Pemex of the 750 MMboe Zama field discovered by Talos Energy in 2017 on the Mexico side of the Gulf and is expected to complete plans for an FID in 2026. Earlier work indicated Zama's potential to reach peak oil production of 180,000 Bopd by 2029.
Contents and Insights:
------ LLOG Stats: 27,600 net volumes assuming 18.75% royalty, 500 MMboe 2P + commercial 2C resources.
------ Key Assets: Deepwater hubs including Buckskin and Leon-Castille in Keathley Canyon and Who Dat in Mississippi Canyon plus decades of expertise and exploration success with the world-class LLOG team.
------ Favorable Economics: LLOG's assets bring a tax rate of 23% v. 78% of Harbour standalone which bodes well for increasing capital towards LLOG's growth assets.
Here are our quick takeaways from our report along w/ three slides.
Quick Quotes:
------- Finally the Right Deal. "Harbour had been seeking a Gulf entry for years and LLOG's profile checked the boxes compared to other opportunities that were generally more mature, lower quality, less growth and burdened by massive decommissioning liabilities."
------- Market Reaction: "Muted reaction with Harbour's stock initially slipping 1% and then down 5% after a few days."
------- Why it Matters: “The deal is significant. It immediately provides Harbour with the largest resources base in the U.S. Gulf among independents and ahead of OXY, Talos, Beacon, Murphy and Woodside."
-------Content: "We provide select Gulf of America historical transactions that shows Harbour's buy as the 4th largest in the Gulf and the first $1B deal since Talos acquired QuarterNorth's deepwater assets (ex-Fieldwood) for $1.3B in May 2024. We also look at LLOG's history since 1977 and its key NonOp partners."
------- Contrast: “The Gulf of America is attractive on the global stage for its stable and favorable regulatory and tax regime. Remarkably, Harbour's tax rate for its existing assets in the North Sea, Argentina and the Mexico side of the Gulf are a striking 78% compared to an effective 23% for LLOG's assets.”
------- Context: “The number of players in the Gulf of America has diminished over time yet the deepwater Gulf in the Miocene and particularly the Wilcox plays continues to deliver superb exploration results. Success requires a deep bench of technical expertise across the exploration, project execution and operating teams - which LLOG has solidly demonstrated over decades. While some view the deal as pricey based on current volumes the outlook for future growth is strong given LLOG's historical success and current position in the Gulf's most exciting plays."
Below are some excerpts from the Deal Alert
Page 1 Deal Highlights --

Page 2 Let's Look at the seller --

Page 5 Why it Matters --

The FULL 5-page report is available for download to the right.
Energy Advisors Group is working hard to expand our thought leadership leveraging our decades of industry expertise. We look forward to providing additional market insight for our clients through Market Monitor, Regional Perspectives, Deal Alerts and Quarterly M&A Outlook.
Our firm has been serving the needs of buyers, sellers and capital providers for over thirty-five years. We stand ready to assist asset owners in a competitive divestment process and to help buyers find off-market strategic assets for their portfolio. Call Rich Martin at 214-744-2495 or email rmartin@energyadvisors.com for a private consultation.
TO LEARN MORE:
Blake Dornak
Vice President
Phone: 713-600-0169
– Email: bdornak@energyadvisors.com
Brian Lidsky
Director-Research & Special Projects
Phone: 713-600-0138
– Email: blidsky@energyadvisors.com
IF YOU NEED ASSISTANCE downloading the full report or creating a login into our platform, contact:
Stephanie Epps
– Email: stephanie@energyadvisors.com
This article is for informational purposes only and not intended as financial advice. Please conduct your own research before investing.




