Mari Energies Limited announced on Monday that gas has been discovered at the Tibri-1 exploratory well in the Kalchas South Block, located in Dera Bugti district of Balochistan. The discovery was disclosed through a notice submitted to the Pakistan Stock Exchange (PSX).
According to the notice, the Kalchas South joint venture is operated by United Energy Pakistan Limited (UEPL), which holds a 46% working interest. Mari Energies owns a 44% working interest, while Dewan Petroleum (Private) Limited holds the remaining 10%.
The Tibri-1 well is the first exploratory well drilled in the Kalchas South Block. Spudded on November 11, 2025, the well was drilled to a total depth of 7,170 feet. Initial testing of the Dunghan/Sui Main Limestone formation indicated a gas flow rate of 11 million standard cubic feet per day (MMSCFD) at a 64/64-inch choke with a wellhead flowing pressure of 561 psi. A flow rate of 6.5 MMSCFD was recorded at a 32/64-inch choke with a wellhead flowing pressure of 1,161 psi.
The company said further testing is underway to assess the well’s full production potential. Mari Energies noted that exploration activity in the area had remained limited for an extended period due to security-related challenges. Following the acquisition of additional working interest from Dewan Petroleum in July 2023, the joint venture resumed exploration activities, leading to the Tibri-1 gas discovery.
The company added that the discovery reflects ongoing efforts by the joint venture to explore and develop domestic hydrocarbon resources in Pakistan.
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