According to the Industrial Development Agency (ARP), net profit at Polish coal mines stood at 1.45 billion zlotys (US$400.06 million) in the first half of the year compared to a 800 million zlotys loss a year earlier.
After posting a fourfold rise in profits, world's number one mining company now "actively pursuing options to exit" its US oil and gas business bought for $20B six years ago.
Measure is part of a broader plan to restore profitability at the division, which saw adjusted operating profit fell by 37% in the second quarter of this year.
Value added brought by the mining sector grew by more than 21% in the first three months of the year — the largest increase since the fourth quarter of 2014.