DUBAI, Aug 8 (Reuters) - Saudi Arabian state oil producer Aramco (2222.SE) reported a near four-fold rise in second-quarter net profit on Sunday, beating expectations and boosted by higher oil prices and a recovery in oil demand. Aramco said its results were supported by the global easing of COVID-19 restrictions, vaccination campaigns, stimulus measures and accelerating economic activity in key markets. Aramco joins other oil majors who have reported strong results in recent weeks. Exxon Mobil (XOM.N) last month said its net income for the second quarter came in at $4.69 billion, or $1.10 per share, compared with a loss of $1.08 billion, or 26 cents per share, a year ago. read more Royal Dutch Shell (RDSa.L) reported its highest quarterly profit in more than two years, with adjusted earnings at $5.53 billion, compared with earnings of $638 million a year earlier. read more Oil prices, boosted by output cuts made by the Organization of the Petroleum Exporting Countries and their allies, a group known as OPEC+, closed at $70.70 a barrel on Friday and has gained over 35% since the start of the year. "Our second quarter results reflect a strong rebound in worldwide energy demand and we are heading into the second half of 2021 more resilient and more flexible, as the global recovery gains momentum," Aramco CEO Amin Nasser said in a statement. Aramco"s net profit rose to 95.47 billion riyals ($25.46 billion) for the quarter to June 30 from 24.62 billion riyals a year earlier. Analysts had expected a net profit of $23.2 billion, according to the mean estimate from five analysts. Aramco"s CEO told an earnings call that global oil demand was expected to hit 99 million barrels a day by the end of the year and 100 million barrels next year, Aramco is still working to increase its own capacity to 13 million barrels day, Nasser said, reiterating a plan announced last year. MAINTAINS DIVIDEND It declared a dividend of $18.8 billion in the second quarter, in line with its own target, which will be paid in the third quarter. Credit Suisse analysts said late last month they expected Aramco to declare a special dividend because of higher oil prices that had helped boost its free cash flow. Yousef Husseini, equity research analyst at EFG Hermes, said Aramco may be keeping the extra cash for taking part in the new state-backed Shareek (Partner) initiative, to partner with private sector investments. "I think the reason they maintained [the dividend] and our rationale was that they are retaining money to invest in future projects and particularly the "Shareek" programme," he said. Aramco"s capital expenditure was $7.5 billion in the second quarter, an increase of 20% from a year earlier. A consortium including Washington DC-based EIG Global Energy Partners in June closed a deal to buy 49% of Aramco"s pipelines business for $12.4 billion. read more ($1 = 3.7501 riyals)