Southern Energy Corp. has released the drilling rig from its Terrible Creek 21-2 #2 Cotton Valley vertical well in the Williamsburg Field. The Calgary-based company said the well was drilled and cased successfully, while completion and testing work in the Cotton Valley formation is planned next.
#Williamsburg well reaches target depth
The rig was released on September 10, 2026. Southern said the well reached a total depth of approximately 18,825 feet and encountered numerous prospective sands across the Sligo, Hosston and Cotton Valley formations.
The company has not provided test results. Those results are expected to follow once the planned completion and testing operations are carried out.
#Management comments on drilling performance
Ian Atkinson, Southern Energy’s President and Chief Executive Officer, said the company considered the operational performance of its first Cotton Valley well in the Williamsburg field positive. He stated that the well was drilled safely, on budget and from spud date to total depth in less than 22 days.
Atkinson also said Southern identified operational efficiencies that it expects to use on future wells to further optimise drill times and capital costs. These comments concern the company’s plans and expectations and do not provide results from the upcoming completion or testing work.
#Company background
Southern Energy Corp. is identified in the announcement by the trading symbols TSXV:SOU and AIM:SOUC. It is described as a producer with natural gas and light oil assets in Mississippi.
The company says its primary focus is acquiring and developing conventional natural gas and light oil resources in Mississippi, Louisiana and East Texas. Its stated activities include acquisitions, optimisation of existing oil and natural gas fields, and redevelopment strategies involving horizontal drilling and multi-staged fracture completion techniques.
#Forward-looking information and risks
Southern said statements about the timing and conduct of completion and testing operations, the potential results of the Williamsburg well, asset development and anticipated operational results constitute forward-looking information. The company said these statements depend on assumptions including the timing and success of drilling, development, completion and testing activities; the performance of the Terrible Creek 21-2 #2 well; the availability and performance of services, facilities and pipelines; the geological characteristics of its properties; the application of completion and seismic technology; legislation and regulatory requirements; required permits and licences; the availability of capital, labour and services; and its ability to execute its plans and strategies.
The company cautioned that it can give no assurance that these expectations and assumptions will prove correct. Risks identified in the announcement include operational risks in exploration, development and production; uncertainty around reserve estimates and estimates of production, costs and expenses; regulatory, health, safety and environmental risks; delays, unsuccessful outcomes or higher-than-expected costs in drilling, completion or testing; and the possibility that the well does not achieve anticipated production.
Other stated risks include the availability of rigs, equipment, labour, supplies, services, facilities, pipelines, capital and industry partners; commodity price and exchange rate fluctuations; credit and default risks; geopolitical and political or economic instability; hostilities, wars and civil insurrections; inflationary increases in operating and capital costs; changes to tax laws, royalties, environmental regulations and other requirements; risks involving financial obligations and covenants; adverse weather or break-up conditions; and delays or changes to exploration, development or capital expenditure plans. The announcement states that further risks apply.
#Key Takeaways
- Southern Energy released the drilling rig on September 10, 2026, after drilling and casing the Terrible Creek 21-2 #2 well.
- The Williamsburg well reached approximately 18,825 feet and encountered sands in the Sligo, Hosston and Cotton Valley formations.
- Completion and testing operations in the Cotton Valley formation are planned, but test results were not available in the announcement.
- Southern identified risks including drilling and testing delays, higher costs, regulatory requirements, resource availability and the possibility of lower-than-anticipated well production.
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