Southern Energy Corp. Announces Preliminary Gwinville Completion Results

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CALGARY, AB / ACCESSWIRE / January 16, 2024 / Southern Energy Corp. ("Southern" or the "Company") (TSXV:SOU)(AIM:SOUC)(OTCQX:SOUTF), an established producer with natural gas and light oil assets in Mississippi, is pleased to announce the preliminary results from its recent Upper Selma Chalk horizontal well completion in the Gwinville Field. In mid-December 2023, Southern successfully completed the first of its four drilled but uncompleted ("DUC") wells from the Company's Q1 2023 drilling program - the GH 14-06 #3 wellbore. Over the first 20 days of production, natural gas rates from the well exceeded 6.5 MMcf/d and averaged 5.3 MMcf/d under restricted flowing conditions as the well cleans up, recovering approximately 33% of load fluid to-date with gas produced flowing directly to Company owned facilities with all volumes sold.

Southern implemented a number of stimulation design changes for this latest Upper Selma Chalk horizontal completion that improved the predictability and efficiency of the fracture operation and, more importantly, reduced the overall completion cost down to US$2.1 million, well below budget estimates. Costs for this completion operation are approximately 40% lower than the two previous 18-10 pad Upper Selma Chalk wells that were completed earlier in 2023.

Southern will continue to monitor the early production performance from the GH 14-06 #3 well over the next couple of months before making a decision on the completion timing of the remaining three DUC wells. The remaining DUC wellbores have been drilled in the Lower Selma Chalk (2) and City Bank formations.

Ian Atkinson, President and Chief Executive Officer of Southern, commented:

"We are extremely excited to deliver the results of this latest Upper Selma Chalk horizontal well, which we expect to fall in-line with our Gen 2 IP30 type curve estimates. The Southern operations team has successfully analyzed and optimized our early well results to execute what may be our best well to-date, for a fraction of the cost of the prior well completions which bodes well for future well activity. Southern is already selling volumes of gas associated with its latest well at gas prices up over 30% from November lows. Improved production rates at lower capital costs will allow Southern to start redeveloping the Gwinville Field on an accelerated timeline as natural gas prices are expected to improve materially into the second half of 2024.

With the success of the completed well, the Company is now looking forward to deploying these successful design changes on our first two Lower Selma Chalk laterals and the next City Bank lateral that remain uncompleted. Our original City Bank horizontal completion at GH 18-10 #1 has shown no decline since being placed on production in July 2023. With these updates we remain eager to highlight the benefits of an optimized completion design performance in this formation delivering value for the business."