In early deals, Greka shares were up 24% changing hands at 1.78p.
Share trading had been suspended earlier this month after the financial results were delayed beyond the June 30 deadline, partly due to a change in accounting personnel at the company.
The results themselves revealed annual revenue of US$11.6mln, up from US$7.2mln in the preceding year.
Losses before tax narrowed significantly to US$1.4mln, from US$9.6mln in 2016. The company, meanwhile, highlighted that thanks to improved revenue and more controlled operational costs it managed a US$3.4mln gross profit for the year, versus a US$1mln gross loss in the year before.
It ended the period, to December 31, with US$600,000 of cash and bank deposits.
Drilled more wells in 2017
Operationally, the company drilled more wells – a total of 48 wells versus 33 in 2016 – and the total drilled distance amounted to 64,192 metres, up from 39,553 metres in the previous year. The majority, some 56,531 metres, of the work took place in China.
Randeep Grewal, Greka chief executive, in a statement said: "While the year presented challenges in India and some in China, Greka Drilling concluded the year with a 61% increase in revenues to US$11.6m from US$7.2m in the previous year.
“In China the government continued its strong support for the development of its Coal Bed Methane (CBM) resources.
“We were beneficiaries of the continued drilling programs by state-owned China National Petroleum Corporation (CNPC) on its large acreage in southern Shanxi province on multiple blocks.
“Among the significant number of state-owned drilling companies, Greka Drilling stands out as the only independent foreign drilling contractor sustainably providing services within the CBM sector in China and India."