April 24 (SeeNews) - Serbian oil and gas company NIS [BEL:NIIS], 56.15%-owned by Russia's Gazprom Neft, is expected to pay a gross dividend of around 74 dinars ($0.89/0.64 euro) per share for last year, slightly below the 2012 payout, the head of the research division of Belgrade-based brokerage Sinteza Invest Group said on Thursday.