Oil futures have embarked on another leg downward as traders fret over the chance of increased supply from Iran and mounting U.S. crude stockpiles, but investors can rest easy in at least one regard, S&P Capital IQ's Stewart Glickman said on Wednesday.

"If there was one consistent theme coming from fourth-quarter earnings calls in February and January, it was the sanctity of the dividend. I really don't think that any of the major oils are going to be cutting their dividends, at least stateside," he told CNBC's "Squawk on the Street."