Santos Delays ADNOC-Led Takeover Decision
Deal News | Aug 19, 2025 | Zawya

Australia's Santos has announced a delay in the completion of an $18.7 billion acquisition bid led by an international consortium spearheaded by Abu Dhabi's National Oil Company (ADNOC). The consortium, which includes investment firm XRG, Abu Dhabi Development Holding Company (ADQ), and private equity firm Carlyle, notified Santos of the need for at least an additional four weeks beyond the initial August 22 deadline to secure all necessary approvals. Despite ongoing collaborative discussions and extensive due diligence, the parties have not yet reached consensus on the terms of a binding scheme implementation agreement (SIA), making it improbable to sign an agreement before the newly extended deadline. The transaction, if successful, would involve significant operations across Australia and Papua New Guinea, but faces regulatory hurdles given Santos' critical role as an energy provider in Australia. The deal requires approvals from regulators in Australia, Papua New Guinea, and the U.S. Concurrently, Santos has postponed releasing its interim earnings report to August 25. This news led to a 3.5% drop in Santos' share price, marking a five-week low.
Sectors
- Oil and Gas
- Private Equity
Geography
- Australia – Santos, a key company in the proposed acquisition, is based in Australia and the deal primarily affects Australian markets and regulations.
- United Arab Emirates – ADNOC, leading the acquisition consortium, is based in the UAE, underlining the country's significant role in international energy investments.
- Papua New Guinea – The deal involves operations in Papua New Guinea, making its regulatory approval crucial.
Industry
- Oil and Gas – The article discusses a significant acquisition bid in the oil and gas sector involving major stakeholders in energy production.
- Private Equity – The involvement of Carlyle, a well-known private equity firm, highlights the PE industry's role in this international investment consortium.
Financials
- $18.7 billion – The proposed acquisition value for the takeover of Santos by the ADNOC-led consortium.
- 3.5% – The drop in Santos' share price following the announced delay.
- A$7.68 – The share price of Santos, marking a more than five-week low at the time of this announcement.
Participants
| Name | Role | Type | Description |
|---|---|---|---|
| Santos | Target company | Company | An Australian oil and gas company subject to an $18.7 billion acquisition bid. |
| ADNOC (Abu Dhabi National Oil Company) | Bidding Company | Company | Leading the international consortium aiming to acquire Santos. |
| XRG | Investment Arm of ADNOC | Company | XRG is part of the consortium making the bid for Santos. |
| ADQ (Abu Dhabi Development Holding Company) | Part of Bidding Consortium | Company | A partner in the ADNOC-led consortium seeking to acquire Santos. |
| Carlyle | Private Equity Firm, Part of Bidding Consortium | Company | A global investment firm participating in the acquisition consortium. |