Before the late 1950s, Sindh was not known to be rich in hydrocarbons. The government of India began exploratory activity in Sindh in 1893 by drilling a well in Sukkur, which did not result in any yield. The next attempt for the search of oil and gas in Sindh began after an interval of more than three decades by the Burmah Oil Company, a Scottish oil business based in Khairpur. Like its predecessor, the project did not result in discovery of oil. Until 1947, exploration was underway mainly in Punjab, where four oil discoveries were made since the initiation of the process in 1868.
After the creation of Pakistan, the nascent country strove to meet its energy requirements independently. Pakistan Petroleum Limited (PPL) was founded in 1950. Its first project comprised of drilling near the town of Sui, Balochistan, leading to the discovery of the largest gas field of the country.
Several players were involved in oil and gas exploration in Punjab, Balochistan, and Sindh. Table 1 shows, however, that no gas was discovered in Sindh until 1956 and no oil was found until 1981.
In 1957, Pakistan Petroleum discovered natural gas in Khairpur. In the same year, gas reserves were found both in Mari (of 6.3 trillion cubic feet, the second largest gas reserves in Pakistan) and Talhar by Pak-Stanvoc Petroleum Project (a joint venture of the Government of Pakistan and Esso Eastern Incorporated). The next year, Burmah Oil Company drilled and discovered some gas in Lakhra, Badro, and Phulji Dadu. And in 1959 Pak-Stanvoc Petroleum Project discovered a small gas reserve in Bathoro and some gas and oil in Nabisar. The project also attempted to drill oil in Badin, but did not discover any reserves. In the same year, PPL discovered a meagre amount of gas in Kandhkot and Mazarni.
To contextualise the present, one must look back and understand the past. Eos presents selected passages from the recently-published book The Economy of Modern Sindh by Ishrat Husain, Aijaz A. Qureshi and Nadeem Hussain
However, during 1960-70 gas exploration shrunk and the focus shifted to oil exploration across Pakistan. The companies that were involved in exploration during this period were Sun Oil Company (SOC), ESSO Eastern Inc. (ESSO), and the Oil and Gas Development Corporation (OGDC, established in 1961). Sun Oil Co. focused mainly on coastal areas; it drilled wells in Patiani Creek and Dabbo Creek in 1964, and Korangi Creek in the following year. The oil exploration proved fruitless all over the country. 453 exploratory wells were drilled out of which 60 were located in Sindh and, as a result of these efforts, only one small gas field was discovered at Sari, Sindh, by OGDC in 1966.