Wintershall Dea, a long-term partner to Russian gas giant Gazprom, said earnings before interest, tax, depreciation, amortisation and exploration expenses (EBITDAX) - a standard oil industry measure - came in at 2.6 billion euros ($2.57 billion) in the three months to end September, up 162% year-on-year.

The company, owned jointly by BASF and investor group LetterOne, posted adjusted net income of 851 million euros, up 264% from 234 million a year earlier, saying the figure was adjusted for non-cash impairments on its 15.5% Nord Stream 1 shareholding.

Oil prices - after soaring on the energy tightness this year - have fallen sharply only recently on an economic slowdown in China and on a strong dollar that makes crude more expensive for non-American buyers, although a deal to lower output made by exporters' group OPEC+ is limiting losses.

Production of hydrocarbons at Wintershall Dea in the three months of July through September was 4% above the same period last year at 614,000 barrels of oil equivalent (boe), it said.

($1 = 1.0129 euros)

(Reporting by Vera Eckert, editing by Miranda Murray)