A pressure gauge is seen at Bulgartransgaz gas storage facility, Chiren, Bulgaria, January 20, 2023. REUTERS/Spasiyana Sergieva 

A gas gauge is seen at Gas Connect Austria next to gas pipes in Baumgarten, Austria, September 28, 2022. REUTERS/Lisa Leutner 

A gas gauge is seen at Gas Connect Austria next to gas pipes in Baumgarten, Austria, September 28, 2022. REUTERS/Lisa Leutner 

A gauge and valves are seen at Storengy's natural gas storage site in Saint-Illiers-la-Ville, western France, September 20, 2022. REUTERS/Christian Hartmann REFILE-CORRECTING INFORMATION 

A pressure gauge is seen at Storengy's natural gas storage site in Saint-Illiers-la-Ville, western France, September 20, 2022. REUTERS/Christian Hartmann 

A gauge and valves are seen at Storengy's natural gas storage site in Saint-Illiers-la-Ville, western France, September 20, 2022. REUTERS/Christian Hartmann REFILE-CORRECTING INFORMATION 

A pressure gauge is seen at Storengy's natural gas storage site in Saint-Illiers-la-Ville, western France, September 20, 2022. REUTERS/Christian Hartmann 

A wind gauge flutters next to the landfall facility of the Baltic Sea gas pipeline Nord Stream 2 in Lubmin, Germany, September 19, 2022. REUTERS/Fabrizio Bensch 

A pressure gauge is seen at the landfall facility of the Baltic Sea gas pipeline Nord Stream 2 in Lubmin, Germany, September 19, 2022. REUTERS/Fabrizio Bensch 

A wind gauge flutters over the landfall facility of the Baltic Sea gas pipeline Nord Stream 1 in Lubmin, Germany, September 19, 2022. REUTERS/Fabrizio Bensch 

Pressure gauges are seen at Zsana Storage Site in Zsana, Hungary, May 20, 2022. REUTERS/Bernadett Szabo 

Pressure gauges are seen at Zsana Storage Site in Zsana, Hungary, May 20, 2022. REUTERS/Bernadett Szabo 

A pressure gauge is pictured at Bulgartransgaz gas compressor station near Ihtiman, Bulgaria, May 12, 2022. REUTERS/Stoyan Nenov 

A gas gauge is seen at Trans Austria Gasleitung (TAG), Austria's gas distribution node, in Baumgarten, Austria, May 9, 2022. REUTERS/Leonhard Foeger 

A gas gauge is seen next to gas tanks at Trans Austria Gasleitung (TAG), Austria's gas distribution node, in Baumgarten, Austria, May 9, 2022. REUTERS/Leonhard Foeger 

A gas gauge and pipes are seen at Trans Austria Gasleitung (TAG), Austria's gas distribution node, in Baumgarten, Austria, May 9, 2022. REUTERS/Leonhard Foeger 

A gas gauge and pipes are seen at Gas Connect Austria, Austria's gas distribution node, in Baumgarten, Austria, May 9, 2022. REUTERS/Leonhard Foeger 

A gas gauge and pipes are seen at Gas Connect Austria, Austria's gas distribution node, in Baumgarten, Austria, May 9, 2022. REUTERS/Leonhard Foeger 

A gas gauge and pipes are seen at Gas Connect Austria, Austria's gas distribution node, in Baumgarten, Austria, May 9, 2022. REUTERS/Leonhard Foeger 

Gas gauges and pipes are seen at Gas Connect Austria, Austria's gas distribution node, in Baumgarten, Austria, May 9, 2022. REUTERS/Leonhard Foeger 

Gas gauges and pipes are seen at Gas Connect Austria, Austria's gas distribution node, in Baumgarten, Austria, May 9, 2022. REUTERS/Leonhard Foeger 

A pressure gauge is pictured at a gas installation at the main pipe delivering gas to Sofia Iztok thermal power plant, Sofia, Bulgaria, April 28, 2022. REUTERS/Stoyan Nenov 

A view shows valves, pipes and a gauge at a gas compressor station near Uzhhorod, Ukraine, October 7, 2021. REUTERS/Gleb Garanich 

Pressure gauges are seen next to an oil rig of Austria's oil and gas group OMV at their exploratory drilling site near Maustrenk, Austria October 9, 2018. REUTERS/Leonhard Foeger 

Gauges monitor pressure on a drilling rig performing logging operations in the Permian Basin oil and natural gas production area near Wink, Texas U.S. August 22, 2018. Picture taken August 22, 2018. REUTERS/Nick Oxford 

The fuel gauge of a car is lit, indicating that the fuel tank is almost empty, in Ciudad Juarez, Mexico October 4, 2017. Picture taken October 4, 2017. REUTERS/Jose Luis Gonzalez 

The fuel gauge of a school bus fueled by compressed natural gas (CNG) reads empty at the Advanced Clean Transportation Expo, held at the Long Beach Convention Center in Long Beach, California, U.S. May 3, 2017. REUTERS/Andrew Cullen 

An old gasometer is seen at the Italgas company area in Rome, Italy, March 17, 2016. REUTERS/Stefano Rellandini 

An old gasometer is seen at the Italgas company area in Rome, Italy, March 17, 2016. REUTERS/Stefano Rellandini 

An old gasometer is seen at the Italgas company area in Rome, Italy, March 17, 2016. REUTERS/Stefano Rellandini 

An old gasometer is seen at the Italgas company area in Rome, Italy, March 17, 2016. REUTERS/Stefano Rellandini 

An old gasometer is seen at the Italgas company area in Rome, Italy, March 17, 2016. REUTERS/Stefano Rellandini 

An old gasometer is seen at the Italgas company area in Rome, Italy, March 17, 2016. REUTERS/Stefano Rellandini 

An old gasometer is seen at the Italgas company area in Rome, Italy, March 17, 2016. REUTERS/Stefano Rellandini 

An old gasometer is seen at the Italgas company area in Rome, Italy, March 17, 2016. REUTERS/Stefano Rellandini 

Female employees fill the tank of a car at a petrol station in Cairo, Egypt, February 24, 2016. A petrol station in the Egyptian capital Cairo hires women to work as attendants - until now, petrol stations were staffed almost exclusively by men. Picture taken February 24, 2016. REUTERS/Mohamed Abd El Ghany 

A worker stands near a pressure gauge and a valve at a gas compressor station and underground gas storage facility in the village of Mryn, north of Kiev, Ukraine, October 15, 2015. Ukrainian energy ministry actions are putting at risk a $300 million loan from the European Bank for Reconstruction and Development, Ukrainian Prime Minister Arseny Yatseniuk said on Thursday. The EBRD approved the loan in September for the purchase of gas from Europe. REUTERS/Gleb Garanich 

A pressure gauge is seen at a gas compressor station and underground gas storage facility in the village of Mryn, north of Kiev, Ukraine, October 15, 2015. Ukrainian energy ministry actions are putting at risk a $300 million loan from the European Bank for Reconstruction and Development, Ukrainian Prime Minister Arseny Yatseniuk said on Thursday. The EBRD approved the loan in September for the purchase of gas from Europe. REUTERS/Gleb Garanich 

A pressure gauge is seen at a gas compressor station and underground gas storage facility in the village of Mryn, 120 km (75 miles) north of Kiev, Ukraine, October 15, 2015. Ukrainian energy ministry actions are putting at risk a $300 million loan from the European Bank for Reconstruction and Development, Ukrainian Prime Minister Arseny Yatseniuk said on Thursday. The EBRD approved the loan in September for the purchase of gas from Europe. REUTERS/Gleb Garanich 

A pressure gauge is seen at a gas compressor station and underground gas storage facility in the village of Mryn, north of Kiev, Ukraine, October 15, 2015. Ukrainian energy ministry actions are putting at risk a $300 million loan from the European Bank for Reconstruction and Development, Ukrainian Prime Minister Arseny Yatseniuk said on Thursday. The EBRD approved the loan in September for the purchase of gas from Europe. REUTERS/Gleb Garanich 

The 'off' switch for the engine that runs the pump at a well site about 60 kilometres east of the field office during a tour of Gear Energy's well sites near Lloydminster, Saskatchewan August 27, 2015. Amid the corn and canola fields of eastern Saskatchewan, oil foreman Dwayne Roy is doing what Saudi Arabia and fellow OPEC producers are loath to do: shutting the taps on active wells. Inside a six-foot-square wooden shed that houses a basic hydraulic pump, the Gear Energy Ltd employee demonstrates how shutting down a conventional heavy oil well in this lesser-known Canadian oil patch is as simple as flipping a switch. His company has already done so hundreds of times this year, making the Lloydminster industry among the first in the world to yield in a global battle for oil market share that has sent crude prices tumbling to six-year lows. Picture taken August 27, 2015. REUTERS/Dan Riedlhuber 

Gauges and pipes marked "Wasserstoff" (hydrogen) are pictured at the "wind2hydrogen" pilot plant on the day it was officially opened in Auersthal, Austria, August 19, 2015. The goal of the research project by Austrian oil and gas group OMV is to set up conditions needed to produce renewable hydrogen to store and transport power from renewable energy, the company says. It produces some 31 kg (68 pounds) of hydrogen per day, the amount sufficient to power a car for some 3,500 km (2,175 miles). REUTERS/Heinz-Peter Bader 

Pressure gauges, pipes and valves are pictured at an "Dashava" underground gas storage facility near Striy, Ukraine May 28, 2015. Ukrainian state energy firm Naftogaz paid Russia's Gazprom another $30 million in prepayment for gas supplies, the Ukrainian company said on Wednesday. REUTERS/Gleb Garanich

Pressure gauges, pipes and valves are pictured at an "Dashava" underground gas storage facility near Striy, Ukraine May 28, 2015. Ukrainian state energy firm Naftogaz paid Russia's Gazprom another $30 million in prepayment for gas supplies, the Ukrainian company said on Wednesday. REUTERS/Gleb Garanich

Pressure gauges, pipes and valves are pictured at an "Dashava" underground gas storage facility near Striy, Ukraine May 28, 2015. Ukrainian state energy firm Naftogaz paid Russia's Gazprom another $30 million in prepayment for gas supplies, the Ukrainian company said on Wednesday. REUTERS/Gleb Garanich

Pressure gauges, pipes and valves are pictured at an "Dashava" underground gas storage facility near Striy, Ukraine May 28, 2015. Ukrainian state energy firm Naftogaz paid Russia's Gazprom another $30 million in prepayment for gas supplies, the Ukrainian company said on Wednesday. REUTERS/Gleb Garanich

Pressure gauges and gas pipes are seen at a gas-measuring station near Uzhhorod, Ukraine, May 27, 2015. Ukrainian state energy firm Naftogaz paid Russia's Gazprom another $30 million in prepayment for gas supplies, the Ukrainian company said on Wednesday. REUTERS/Gleb Garanich

A pressure gauge and gas pipes are seen at a gas-measuring station near Uzhhorod, Ukraine, May 27, 2015. Ukrainian state energy firm Naftogaz paid Russia's Gazprom another $30 million in prepayment for gas supplies, the Ukrainian company said on Wednesday. REUTERS/Gleb Garanich

A pressure gauge and gas pipe are seen at a gas-measuring station near Uzhhorod, Ukraine, May 27, 2015. Ukrainian state energy firm Naftogaz paid Russia's Gazprom another $30 million in prepayment for gas supplies, the Ukrainian company said on Wednesday. REUTERS/Gleb Garanich

Pressure gauges and gas pipes are seen at a gas-measuring station near Uzhhorod, Ukraine, May 27, 2015. Ukrainian state energy firm Naftogaz paid Russia's Gazprom another $30 million in prepayment for gas supplies, the Ukrainian company said on Wednesday. REUTERS/Gleb Garanich 

A car fuel display is seen in Rome January 6, 2015. U.S. and European stocks rose on Tuesday, rebounding from heavy losses tied to anxiety about tumbling oil prices and Greece possibly leaving the euro zone, while nervous investors bought more gold, yen, low-risk government bonds and other safe-haven assets. REUTERS/Max Rossi (ITALY - Tags: BUSINESS POLITICS TRANSPORT ENERGY) 

A pressure metre is pictured at the gas storage facility of Hungarian state-owned energy group MVM in Zsana November 3, 2014. Hungary will not face gas supply problems this winter as stores are close to 70 percent full, containing about 4.3 billion cubic metres of gas, MVM executives said on Monday. REUTERS/Laszlo Balogh (HUNGARY - Tags: ENERGY BUSINESS COMMODITIES POLITICS) 

A gas gauge and pipes are pictured at Wiener Netze (Viennese Energy Supply Company), Vienna's gas distribution node, in the Erdberg district of Vienna September 19, 2014. Russian gas flows to Austria have fallen this month, with Reuters data showing a sharp drop from 560 gigawatt-hours per day (GWh/d) at the beginning of September to as low as 460 GW/d a week later, although flows have since recovered to 600 GWh/d. REUTERS/ Leonhard Foeger (AUSTRIA - Tags: POLITICS ENERGY BUSINESS) 

A gas gauge and pipes are pictured at Wiener Netze (Viennese Energy Supply Company), Vienna's gas distribution node, in the Erdberg district of Vienna September 19, 2014. Russian gas flows to Austria have fallen this month, with Reuters data showing a sharp drop from 560 gigawatt-hours per day (GWh/d) at the beginning of September to as low as 460 GW/d a week later, although flows have since recovered to 600 GWh/d. REUTERS/ Leonhard Foeger (AUSTRIA - Tags: POLITICS ENERGY BUSINESS) 

Gas gauges are pictured at Wiener Netze (Viennese Energy Supply Company), Vienna's gas distribution node, in the Erdberg district of Vienna September 19, 2014. Russian gas flows to Austria have fallen this month, with Reuters data showing a sharp drop from 560 gigawatt-hours per day (GWh/d) at the beginning of September to as low as 460 GW/d a week later, although flows have since recovered to 600 GWh/d. REUTERS/ Leonhard Foeger (AUSTRIA - Tags: POLITICS ENERGY BUSINESS) 

Gas gauges are pictured at Wiener Netze (Viennese Energy Supply Company), Vienna's gas distribution node, in the Erdberg district of Vienna September 19, 2014. Russian gas flows to Austria have fallen this month, with Reuters data showing a sharp drop from 560 gigawatt-hours per day (GWh/d) at the beginning of September to as low as 460 GW/d a week later, although flows have since recovered to 600 GWh/d. REUTERS/ Leonhard Foeger (AUSTRIA - Tags: POLITICS ENERGY BUSINESS) 

A gas gauge and a trhermometer (R) are pictured as an employee checks at Wiener Netze (Viennese Energy Supply Company), Vienna's gas distribution node, in the Erdberg district of Vienna September 19, 2014. Russian gas flows to Austria have fallen this month, with Reuters data showing a sharp drop from 560 gigawatt-hours per day (GWh/d) at the beginning of September to as low as 460 GW/d a week later, although flows have since recovered to 600 GWh/d. REUTERS/ Leonhard Foeger (AUSTRIA - Tags: POLITICS ENERGY BUSINESS COMMODITIES) 

A gas gauge and a trhermometer (R) are pictured as an employee checks at Wiener Netze (Viennese Energy Supply Company), Vienna's gas distribution node, in the Erdberg district of Vienna September 19, 2014. Russian gas flows to Austria have fallen this month, with Reuters data showing a sharp drop from 560 gigawatt-hours per day (GWh/d) at the beginning of September to as low as 460 GW/d a week later, although flows have since recovered to 600 GWh/d. REUTERS/ Leonhard Foeger (AUSTRIA - Tags: POLITICS ENERGY BUSINESS COMMODITIES) 

A gas gauge and pipes are pictured as two employees check at Wiener Netze (Viennese Energy Supply Company), Vienna's gas distribution node, in the Erdberg district of Vienna September 19, 2014. Russian gas flows to Austria have fallen this month, with Reuters data showing a sharp drop from 560 gigawatt-hours per day (GWh/d) at the beginning of September to as low as 460 GW/d a week later, although flows have since recovered to 600 GWh/d. REUTERS/ Leonhard Foeger (AUSTRIA - Tags: POLITICS ENERGY BUSINESS COMMODITIES) 

A gas gauge and pipes are pictured as an employee checks at Wiener Netze (Viennese Energy Supply Company), Vienna's gas distribution node, in the Erdberg district of Vienna September 19, 2014. Russian gas flows to Austria have fallen this month, with Reuters data showing a sharp drop from 560 gigawatt-hours per day (GWh/d) at the beginning of September to as low as 460 GW/d a week later, although flows have since recovered to 600 GWh/d. REUTERS/ Leonhard Foeger (AUSTRIA - Tags: POLITICS ENERGY BUSINESS COMMODITIES)