24^th January 2022

Pantheon Resources plc

Spudding of Theta West #1 Well and Operations Update

Pantheon Resources plc ("Pantheon" or "the Company"), the AIM-quoted oil and gas company with a 100% working interest in all of its oil projects spanning c. 153,000 acres adjacent and near to transportation and pipeline infrastructure on the Alaska North Slope, is pleased to provide the following update:

Spudding of Theta West #1 Well  (Pantheon: 100% working interest)

Following the completion of its work preparing the Talitha #A well for testing, the Nordic Calista #3 rig mobilized c. 8.5 miles to the Theta West location where it spudded the Theta West #1 well at approximately 10pm GMT on Friday, 21 January. As of 10pm GMT last night we were drilling ahead at a depth of  1874 feet.

Theta West #1 is targeting two primary targets; (i) the Upper Basin Floor Fan, and (ii) the Lower Basin Floor Fan. Combined, these horizons are estimated by the Company to contain 12.1 billion barrels of oil in place with an estimated 1.4 billion barrels of recoverable resource. The top of the formation is estimated at a depth of about 7,600 feet ("ft") with an estimated 1,300 ft reservoir thickness. The forward plan is to drill to target depth, estimated at c. 9,200 ft, case the hole, and begin testing operations on both the Lower Basin Floor Fan and Upper Basin Floor Fan.

We will make further announcements as significant information occurs during these operations.

Talitha #A Operations Update (Pantheon: 100% working interest)

Prior to relocating to the Theta West #1 location, the Nordic Calista #3 rig completed preparations for testing operations at the Talitha #A well which included a plugging operation on the Kuparuk Zone. The Kuparuk will form the focus of a future well. A Schlumberger fracking unit and the XPRO flow back testing equipment are mobilized and on location. Testing operations commenced over the weekend and will start from the lowest formation, the Lower Basin Floor Fan, before proceeding sequentially to the two shallower Slope Fans (which will be tested together) and the Shelf Margin Deltaic horizons. A Coiled Tubing Unit used for flow testing operations will mobilize to location after the completion of the frack job.

Talitha #A was drilled in 2021 and encountered five independent oil horizons, all confirmed as being oil bearing; (i) the Shelf Margin Deltaic, (ii) the Slope Fan System, (iii) the Upper Basin Floor Fan, (iv) the Lower Basin Floor Fan, and (v) the Kuparuk. Independent 'Volatiles Analysis' undertaken by the experts at Advanced Hydrocarbon Stratigraphy / Baker Hughes took 416 cuttings during drilling of the well over a 3700 ft section spanning these five horizons, with every sample confirming the presence of oil.

AGM presentation and webinar

As previously announced, Pantheon will be hosting a webinar which is open to all shareholders and any other interested party, at 5:00pm GMT.  Registration and access details to the webinar are provided below:

https://www.bigmarker.com/share-talk/Pantheon-Resources-Shareholder-presentation-and-Q-A-January-2022

Jay Cheatham, CEO of Pantheon Resources, said: "The spudding of the Theta West #1 well marks another important day for Pantheon shareholders. As happened last year, our contractors have built the ice roads and drilling pads safely and on schedule. This has enabled us to have our equipment on both locations by mid-January, maximizing our time to complete our planned two well winter campaign.

"A first for Pantheon is the simultaneous operations at both Theta West and Talitha #A. Following these wells, we intend to drill the Alkaid 2 well in Spring/Summer 2022 which, if successful, can commence production soon thereafter. These wells test very large targets and have the potential to be very material for all shareholders, if successful."

-Ends-

Further information:

Notes to Editors

Pantheon Resources plc is an AIM listed Oil & Gas company focused on several large projects located on the North Slope of Alaska ("ANS"), onshore USA where it has a 100% working interest in 153,000 highly prospective acres with potential for multi billion barrels of oil recoverable. A major differentiator to other ANS projects is its close proximity to transport and pipeline infrastructure which offers a significant competitive advantage to Pantheon, allowing for materially lower capital costs and much quicker development times. The Group's stated objective is to create material value for its stakeholders through oil exploration, appraisal and development activities in high impact, highly prospective conventional assets, in the USA; a highly established region for energy production with infrastructure, skilled personnel and low sovereign risk. All operations are onshore USA, with drilling costs materially below that of offshore wells.

Neither the contents of the Company's website nor the contents of any website accessible from hyperlinks on the Company's website (or any other website) incorporated into, or forms part of, this announcement. The information contained within this announcement is considered to be inside information prior to its release.