The refinery attack triggered fires that emergency and firefighting teams were working to contain, the company said in a statement carried by state media. No injuries were reported, and operations were being monitored closely, including air quality in surrounding areas, which officials said showed no immediate environmental impact.

Earlier, Kuwait’s military said its air defense systems were engaging incoming missile and drone threats.

The Ministry of Electricity, Water and Renewable Energy said a separate strike hit a power and desalination plant, causing material damage to parts of the facility. Emergency teams were deployed under contingency plans to maintain operations and secure infrastructure.

Kuwait has faced repeated missile and drone attacks since the outbreak of conflict involving Iran and its regional adversaries, increasing pressure on critical energy and utility infrastructure.

The latest strikes highlight the growing risk to energy supply chains and essential services in the Gulf, even as authorities seek to contain damage and maintain operational continuity.

“The U.S. military hasn’t even started destroying what’s left in Iran. Bridges next, then Electric Power Plants,” Trump wrote on social media, urging Iran’s leadership to act quickly in response to Washington’s demands.

In a televised address a day earlier, Trump said military operations could intensify over the coming weeks if Tehran did not comply, with possible strikes extending to energy and oil facilities. However, he did not provide a clear timeline for the end of the conflict.

The war, which began on February 28 with coordinated U.S. and Israeli attacks on Iran, has since expanded, with Tehran launching retaliatory strikes on Israel and Gulf states hosting U.S. military bases. The conflict has resulted in thousands of deaths and widespread displacement, while also driving up global oil prices and increasing volatility in financial markets.

Iranian media, including Fars News Agency, reported that regional infrastructure, including major bridges in neighboring countries, could also face risks following recent strikes.

The latest remarks have drawn scrutiny from legal experts. Dozens of international law specialists in the United States signed an open letter warning that attacks on infrastructure essential for civilian life could violate the Geneva Conventions, which prohibit targeting civilian objects and require distinction between military and non-military assets during armed conflict.

Trump’s statements add to uncertainty surrounding U.S. strategy in the conflict, with shifting objectives and timelines contributing to concerns among analysts about the scope and duration of military operations.

In a post on his Truth Social platform, Trump said discussions over the past two days had raised the prospect of a “complete and total resolution of hostilities in the Middle East.” Speaking later to reporters before departing Florida for Memphis, he described the talks as “very, very strong,” adding that negotiators had reached agreement on “almost all points.”

Trump said U.S. special envoy Steve Witkoff and Jared Kushner, who had previously engaged in negotiations with Iran, held discussions with a senior Iranian official on Sunday evening and were expected to continue talks on Monday. He declined to identify the Iranian interlocutor, stating only that it was not the country’s supreme leader, and said Washington was engaging with “the man who I believe is the most respected and the leader.”

Reporter for Axios said officials from Turkey, Egypt and Pakistan had separately met Witkoff and Iranian Foreign Minister Abbas Araqchi, suggesting a coordinated mediation effort. Iran’s foreign ministry acknowledged unspecified “initiatives” aimed at reducing tensions, according to the Mehr news agency, and reiterated that Tehran expected Washington to participate directly in any negotiations as a principal party to the conflict.

The diplomatic push comes hours before a previously signaled U.S. deadline that had raised the prospect of escalation targeting Iranian energy infrastructure, a move widely seen as carrying significant regional and economic risks.

Trump said he had communicated with Israel, describing the U.S. ally as supportive of ongoing diplomatic efforts. A source briefed on Israeli planning said Washington had kept Israel informed of its contacts with Tehran and indicated that Israel was likely to mirror the U.S. pause by suspending any targeting of Iranian power plants and related infrastructure.

Trump’s comments helped ease immediate concerns of escalation, with oil prices falling and stock markets recovering as investors reassessed geopolitical risk. The prospect of a temporary halt in strikes on energy assets signaled a reduced likelihood of near-term disruption to regional supply.

Diplomatic contacts are expected to continue in the coming days as intermediaries seek to bridge remaining gaps between Washington and Tehran.

A fuel reservoir at Primorsk caught fire after a drone strike, Alexander Drozdenko, governor of the Leningrad region, said on Telegram. Separately, Ust-Luga operations were halted due to a drone alert in the surrounding area, the sources said.

Both ports, located in Russia’s northwestern Leningrad region, handle the bulk of the country’s seaborne crude oil and refined fuel exports from its western outlets, making them critical nodes in Russia’s energy supply chain.

The suspensions underscore growing vulnerabilities in Russia’s energy infrastructure as drone attacks increasingly target logistics and export facilities. While the extent of damage and the expected duration of the halt were not immediately clear, any prolonged disruption could tighten export availability from Baltic routes.

Transneft, Russia’s state-controlled oil pipeline monopoly that operates both Primorsk and Ust-Luga, did not immediately respond to a request for comment.

Primorsk and Ust-Luga serve as key gateways for Russian crude and petroleum products destined for international markets, particularly in Europe and beyond via maritime routes. Interruptions at these ports can affect shipping schedules, storage logistics and broader supply balances.

The incidents come amid heightened geopolitical tensions and a pattern of attacks on energy infrastructure, raising concerns over the resilience of supply networks and potential knock-on effects in global oil markets.

Brent crude futures rose 65 cents to $112.84 a barrel by 0446 GMT, while U.S. West Texas Intermediate climbed 84 cents to $98.75, after both benchmarks had earlier fallen by more than $1. The spread between the two contracts widened to over $13 a barrel, the largest gap in years.

The volatility follows a U.S. decision to allow the temporary delivery and sale of Iranian-origin oil already at sea, injecting additional supply into markets strained by disruptions linked to the ongoing conflict.

Market sentiment remained highly sensitive to geopolitical developments after Donald Trump issued a 48-hour ultimatum demanding Iran fully reopen the Strait of Hormuz or face strikes on its power plants.Iranian officials responded with warnings that any such action would trigger attacks on critical energy and infrastructure assets across the Gulf.

Iran’s Parliament Speaker Mohammad Baqer Qalibaf said regional facilities could face “irreversible” damage if Iranian plants were targeted.Analysts said the exchange of threats pointed to a heightened risk of escalation.

Amrita Sen of Energy Aspects said markets were underestimating the likelihood that Iran would resist pressure, warning that further confrontation could have severe consequences for Gulf infrastructure.

Despite the release of additional Iranian oil, traders remained focused on the scale of supply disruption caused by the conflict. The Strait of Hormuz, a key artery for global energy flows handling roughly 20% of oil and liquefied natural gas trade, has been severely affected.Industry estimates suggest the war has removed between 7 million and 10 million barrels per day from Middle East production, tightening global supply even as policymakers attempt to stabilise markets.

Vandana Hari of Vanda Insights said short-term price movements would continue to be driven by geopolitical rhetoric, but longer-term trends would depend on the restoration of oil flows from the region.

Fatih Birol, head of the International Energy Agency, described the current crisis as “very severe,” exceeding the combined impact of the oil shocks of the 1970s.The conflict, now in its fourth week, has damaged major energy facilities and disrupted shipping routes, amplifying concerns over prolonged supply constraints and broader economic fallout.

The interplay between potential supply increases from Iranian oil and the risk of further infrastructure damage has left markets exposed to sharp price swings as the situation evolves.

Trump issued the warning in a social media post on Saturday, saying Washington would “obliterate” Iranian power facilities if the strategic waterway remained closed. The strait, a critical conduit for global oil flows, has been effectively shut amid the ongoing hostilities.

Iran’s military command, Khatam al-Anbiya, said any attack on its fuel and energy infrastructure would trigger strikes on U.S. and Israeli assets, including critical civilian-linked systems.

The statement, carried by state media, underscored a widening scope of potential targets beyond conventional military sites.

Iranian officials also indicated that access through the Strait of Hormuz would be restricted, with passage permitted selectively, reflecting Tehran’s control over the route during the conflict.

The escalation coincided with renewed Iranian missile barrages on Israel, including strikes near the southern cities of Dimona and Arad, close to the Negev Desert nuclear research area.

Israeli authorities said dozens were injured and residential buildings sustained heavy damage.Israeli Prime Minister Benjamin Netanyahu said the impact in Arad caused extensive destruction but no fatalities, while urging adherence to air raid warnings. Israel’s military acknowledged that some missiles were not intercepted, marking a breach in air defence coverage in the area.

Iran’s parliament speaker Mohammad Bagher Ghalibaf said the strikes indicated a shift to a new operational phase in the conflict.

The conflict has extended beyond Iran and Israel, with Hezbollah claiming responsibility for a deadly strike in northern Israel, while Gulf states reported drone and missile activity targeting energy infrastructure.

Iran also targeted the joint UK-U.S. military facility at Diego Garcia in the Indian Ocean, though officials said the strike was unsuccessful. Military assessments cited in reports suggested the possibility of longer-range capabilities or alternative launch methods, though no confirmation was provided by Tehran.

The disruption to shipping through the Strait of Hormuz has halted most tanker traffic, contributing to supply constraints and rising global energy prices. Countries including the United Arab Emirates, Britain, Germany, France and Japan have expressed readiness to support efforts to restore safe navigation through the waterway.

U.S. Central Command said earlier that strikes on Iranian coastal facilities had degraded Tehran’s ability to target vessels in the strait. Additional U.S. naval assets and personnel are being deployed to the region as part of ongoing operations.

Casualties have mounted across multiple theatres, with Iran reporting more than 1,500 deaths, while Israel, the United States and Gulf states have also recorded military and civilian losses.

Air raid sirens sounded across Israel early on Sunday, warning of incoming Iranian missiles, after dozens of people were wounded overnight in separate attacks in the southern towns of Arad and Dimona. Israel’s military said it was carrying out strikes on Tehran hours after the Iranian attacks.

Trump on Saturday warned he would “obliterate” Iran’s power plants if Tehran did not fully reopen the Strait of Hormuz within 48 hours, marking a sharp escalation a day after suggesting the conflict could be wound down.

Iran responded on Sunday by warning it would strike U.S. infrastructure, including energy facilities in the Gulf, if Washington followed through on its threat. The warning came as U.S. Marines and heavy landing craft continued moving toward the region.

The exchange of threats has heightened fears that energy installations across key Gulf producers could become direct targets, widening the conflict beyond current theatres of engagement.

The escalating the crisis has disrupted markets, pushing fuel costs higher and intensifying concerns over global inflation. Analysts said the situation has introduced acute uncertainty into financial markets already strained by supply disruptions.

“President Trump’s threat has now placed a 48-hour ticking time bomb of elevated uncertainty over markets,” said Tony Sycamore, an analyst at IG.

He warned that failure to de-escalate could trigger sharp declines in global equities and further spikes in oil prices.

Oil prices rose on Friday to their highest levels in nearly four years after Iraq declared force majeure on oilfields operated by foreign firms, Israel struck a major Iranian gas field, and Tehran retaliated with attacks on neighbouring countries including Saudi Arabia, the United Arab Emirates, Qatar and Kuwait.

Iranian actions have effectively closed the Strait of Hormuz, a narrow passage that carries around a fifth of global oil and liquefied natural gas supplies, triggering what analysts describe as the most severe oil disruption since the 1970s.

The near-closure has also driven European gas prices sharply higher, with increases of up to 35% reported last week, reflecting the strait’s central role in global energy flows.

In a social media post late on Saturday, Trump reiterated his ultimatum, saying the United States would begin targeting Iran’s power infrastructure if the waterway was not reopened “fully” and “without threat” within the specified timeframe.

In a social media post, Trump said the United States would “hit and obliterate” Iranian power infrastructure if the strait was not “fully open, without threat” within the deadline, broadening the potential scope of U.S. military action to include civilian-linked facilities.

The Strait of Hormuz is a critical maritime corridor through which roughly a fifth of global oil and liquefied natural gas flows. Ongoing threats and disruptions have deterred shipping traffic, with the near-blockade triggering a surge in European gas prices of up to 35% last week.Energy markets have remained volatile as the risk to Gulf infrastructure intensifies.

The situation worsened after Iran responded to an Israeli strike on one of its major gas fields by targeting Ras Laffan Industrial City in Qatar, a key hub processing a significant share of the world’s liquefied natural gas. Damage from the strike is expected to take years to repair, according to reports.

Iran warns of broader retaliationIran’s Khatam al-Anbiya military headquarters said on Sunday that any U.S. attack on its fuel and energy infrastructure would prompt retaliatory strikes on American energy, information technology and desalination assets across the region.

The exchange of threats underscores a widening confrontation that increasingly targets economic and civilian-linked infrastructure, raising the stakes for regional stability and global supply chains.Israeli officials said Iran had fired long-range missiles for the first time since hostilities intensified on February 28, expanding the potential reach of the conflict.

According to Israeli military chief Eyal Zamir, Iran launched two ballistic missiles with a range of about 4,000 km at the Diego Garcia base in the Indian Ocean.Zamir said the missiles’ range extended beyond the Middle East, placing European capitals within potential reach.

A source at Britain’s defense ministry said the attack occurred before London granted specific authorization on Friday for the United States to use British bases for strikes on Iranian missile sites.

The developments mark a significant expansion in both the geographic scope and strategic targets of the conflict, with direct implications for international energy flows and military alignments.

QatarEnergy said its emergency teams contained fires at Ras Laffan, the centre of the country’s liquefied natural gas operations, with authorities reporting no casualties.

The facility, located about 80 km north of Doha, is a key global energy hub processing a significant share of the world’s LNG supply.

QatarEnergy said several LNG facilities were hit in early Thursday strikes, causing “sizeable fires” and further structural damage. The Pearl gas-to-liquids plant, one of the world’s largest of its kind, suffered extensive damage, the company added.

International energy firms operating in Ras Laffan began assessing the impact. Shell, which holds stakes in multiple LNG projects at the site, said it was evaluating potential disruptions to its assets.

Qatar produces around 77 million metric tons of LNG annually, making it the world’s second-largest exporter, and Ras Laffan plays a central role in processing and export operations.

The United Arab Emirates said it intercepted incoming missiles and temporarily shut gas facilities as a precautionary measure. Authorities reported no injuries.

The attacks followed Iranian evacuation warnings for energy installations across Saudi Arabia, the UAE and Qatar, issued after strikes on Iran’s own infrastructure, including the South Pars and Asaluyeh energy complexes.

Qatar condemned the strike as a threat to national security and ordered Iranian diplomatic staff linked to defence and security to leave the country within 24 hours, declaring them persona non grata.

Trump, responding on social media, warned Iran against further targeting Qatari LNG infrastructure and said the United States would respond forcefully if such attacks were repeated. He added that Israel’s earlier strike on Iran’s South Pars gas field had occurred without prior notification to Washington or Doha.

The escalation marks a widening of the conflict into critical Gulf energy infrastructure, raising concerns over sustained disruptions to global gas supplies and heightened geopolitical risk across the region.

Global oil majors show renewed interest in Venezuela as political change and reform prospects raise optimism for production growth and long-term energy recovery.

Exxon Mobil is closely studying a potential return to Venezuela, marking a significant shift after nearly two decades away from the country. The move reflects growing confidence that political change and legal reforms could unlock new opportunities for global energy investment.

Company leaders emphasized that any return would depend on strong security assurances and durable investment protections. A technical team is expected to evaluate the condition of Venezuela’s oil assets once conditions are deemed stable and predictable.

Executives highlighted that Venezuela’s hydrocarbons law would need meaningful reform to attract long-term capital. Clear legal frameworks and investor safeguards are viewed as essential for rebuilding trust and restoring production capacity across the sector.

Chevron, which has maintained operations in Venezuela for decades, expressed readiness to increase production immediately. The company indicated it could double output from joint ventures with the national oil company, supporting near-term supply growth.

Chevron also outlined plans to boost production by nearly 50 percent within the next 18 to 24 months. This expansion would follow disciplined investment strategies focused on efficiency, infrastructure repair, and operational stability.

Industry leaders noted Venezuela’s vast resource potential, particularly in the Orinoco Belt, one of the world’s largest heavy crude reserves. Renewed investment could gradually restore output levels and reestablish the country as a major energy supplier.

Exxon, Chevron, and ConocoPhillips were once key partners in developing Venezuela’s oil industry. Their renewed engagement signals optimism that reforms and restructuring can support a sustainable and competitive energy environment.

Executives stressed that rebuilding Venezuela’s energy sector would require significant capital and international financial participation. Banks and export credit agencies are expected to play a role in funding infrastructure repairs and modernization efforts.

Restructuring the national oil company was also identified as a priority for attracting new investment. Greater transparency, operational independence, and financial discipline could help strengthen partnerships with global energy firms.

Despite past challenges, industry leaders expressed confidence that a fresh start could benefit all stakeholders. Restoring production would support Venezuela’s economy, improve energy security, and contribute to global supply stability.

The prospect of increased oil output has been welcomed by markets seeking diversified supply sources. Analysts believe gradual reintegration of Venezuela into global energy markets could help balance long-term demand trends.

Energy executives emphasized collaboration as the foundation for success in Venezuela’s recovery. Partnerships between government, international companies, and financial institutions are seen as key to rebuilding trust and capacity.

Overall, renewed interest from major oil companies reflects cautious optimism for Venezuela’s energy future. With reforms, investment protection, and cooperation, the country could reclaim its role as a significant global oil producer.