Seplat Energy Plc ("SEPLAT" or the "Company")

Notice of Half Year 2026 Financial Results

Lagos and London - 16 July 2026: Seplat Energy Plc ("Seplat" or the "Company"), a leading Nigerian independent energy company listed on both the Nigerian Exchange Limited and London Stock Exchange, will release its Half Year 2026 Financial Results on Thursday 30 July 2026.

At 12:00pm BST / WAT (London / Lagos) on Wednesday 30 July 2026, the Executive Management team will host a webcast to present the Company's Half Year Financial Results.

Information about the results presentation and webcast is detailed below.

Results presentation and webcast arrangements

The presentation can be accessed remotely via the live webcast link listed below. After the webcast, the recording will be made available on our website and via the webcast link.

A copy of the presentation will be made available on the results release date on the Company's website at  https://www.seplatenergy.com/.

- Ends -

Signed:

Eleanor Adaralegbe

Chief Financial Officer                                              

Enquiries

Seplat Energy Plc      

Eleanor Adaralegbe,                                           Chief Financial Officer

Edith Onwuchekwa,                                            Director, Legal/Company Secretary 

James Thompson,                                               GM, Investor Relations                                           

Chioma Afe,                                                          Director, External Affairs and Social Performance

FTI Consulting                                                       Ben Brewerton / Chris Liang                   

+44 (0) 203 727 1000 [email protected]                          

About Seplat Energy

Seplat Energy Plc is Nigeria's leading indigenous energy company. It is listed on the Premium Board of the Nigerian Exchange Limited (NGX: SEPLAT) and the Main Market of the London Stock Exchange (LSE: SEPL). Through our strategy to build a sustainable business and deliver energy transition, we are transforming lives by delivering affordable, reliable and sustainable energy that drives social and economic prosperity.

Seplat Energy's portfolio consists of 11 PMLs, 17 PPLs and 5 OMLs in onshore and shallow water locations in the prolific Niger Delta region of Nigeria, the majority of which we operate with partners including the Nigerian Government and other producers. Furthermore, we have an operated interest in three export terminals including; the Qua Iboe export terminal (QIT), Yoho FSO, and Bonny River Terminal (BRT), and operate two large offshore NGL recovery plants at Oso and EAP.

We operate three gas processing plants onshore, at Oben and Sapele on our Western Assets and the 300 MMscfd ANOH Gas Processing Plant on our Eastern Assets, an integrated joint venture with NGIC. Combined, these gas facilities augment Seplat Energy's position as a leading supplier of natural gas to the domestic power generation market.

For further information please refer to our website, https://www.seplatenergy.com/.