New Delhi | Mumbai: The Reserve Bank of India (RBI) has announced that it will meet the entire daily dollar requirements of Indian Oil, Bharat Petroleum and Hindustan Petroleum from October 12, taking one of the foreign-exchange market's largest recurring sources of dollar demand off the market as it seeks to ease pressure on the rupee.The three state-run refiners and oil marketing companies (OMCs) could need roughly $200 million daily for crude and petroleum imports, according to estimates based on August trade data. However, actual amounts could vary based on their crude sourcing, payment currencies and settlement terms, particularly for Russian oil, payments for which are largely made in UAE dirhams or rupees.Under the special window, the RBI will sell dollars to the three companies through designated banks at prevailing market rates, allowing them to meet their foreign-currency requirements without having to compete for dollars in the spot market. In April, the central bank had...