Islamabad: The country's energy reserves have witnessed a significant increase due to efforts under the Special Investment Facilitation Council (SIFC). In this context, the availability of Mari petroleum reserves has increased to 17 years while improvements in company policy and sustainability measures provided protection against the effects of circular debt.According to Radio Pakistan, the company showed a 17 percent improvement in the market last year and its income is expected to increase further due to development projects and discovery of new reserves.