The US is not able to ease the EU’s energy crunch by increasing its shipments of oil and gas to EU shale executives said.

“It’s not like the US can pump a bunch more. Our production is what it is. There’s no bailout coming, not on the oil side, not on the gas side,” Wil VanLoh, the head of private equity group Quantum Energy Partners, one of the largest shale industry investors, told the news outlet.

Europe is grappling with a growing energy shortage, trying to secure new sources of supplies while moving away from Russian energy. Analysts fear that the upcoming EU embargo on Russian oil will send prices to new record highs. According to the International Energy Agency, oil sales from Russia could fall by almost 20% when the EU embargo takes full effect, which is a vast amount for the global market to lose with Russia being one of the world’s largest petroleum exporters. Over the past several months, Europe has increased purchases of oil and liquefied natural gas (LNG) from the US, but according to shale industry executives, there is not much more they can do.

“We’re not adding [drilling] rigs and I don’t see anyone else adding rigs,” Scott Sheffield, the CEO of Pioneer Natural Resources, one of the biggest oil producers in the US, told FT. According to the report, the overall number of operating oil rigs in the US has not grown in weeks, while the productivity of those in operation has dropped.