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Mari Energies Limited has announced a gas discovery at the Tibri-1 exploratory well located in the Kalchas South Block of Balochistan’s Dera Bugti district, according to a notice submitted to the Pakistan Stock Exchange (PSX).
The Kalchas South Block is operated by United Energy Pakistan Limited (UEPL), which holds a 46% working interest in the joint venture. Mari Energies owns a 44% stake, while Dewan Petroleum Pvt. Limited (DPL) holds the remaining 10%.
Tibri-1 marks the first exploratory well drilled in the Kalchas South Block. Drilling operations began on November 11, 2025, and the well was drilled to a total depth of 7,170 feet, the company said in its filing.
Initial tests conducted on the Dunghan/Sui Main Limestone (SML) formation delivered encouraging results. During testing, the well flowed gas at a rate of 11 million standard cubic feet per day (MMSCFD) at a 64/64-inch choke with a wellhead flowing pressure of 561 pounds per square inch gauge (psig). At a smaller 32/64-inch choke, the flow rate was recorded at 6.5 MMSCFD with a pressure of 1,161 psig. The company stated that additional testing is ongoing to assess the well’s full production potential.
Mari Energies noted that exploration activity in the area had remained inactive for an extended period due to security-related concerns. Following the joint venture’s acquisition of DPL’s working interest in July 2023, operations were resumed, ultimately leading to the drilling of Tibri-1.
The company said the discovery reflects the joint venture’s efforts to enhance Pakistan’s indigenous hydrocarbon resources and contribute to strengthening the national energy supply.
