A record number of ExxonMobil shareholders voted on Wednesday in favor of adding sexual orientation and gender identity to the company's official equal employment opportunity policy, but it was not enough for the measure to pass. ExxonMobil, the world's largest company by revenue, remains the only Fortune 50 company that does not offer GLBT protections.

Nearly 40% of ExxonMobil's shareholders voted in favor of offering protections to the company's GLBT workers. The resolution first appeared in 2000 when it only received an 8.2% approval – a number that has increased every year since.

The Human Right Campaign (HRC), a group that monitors GLBT rights in the workplace, reports that nearly 90% of Fortune 500 companies include sexual orientation in their non-discrimination policies and 30% include gender identity. ExxonMobil's competitors – BP Corp., Chevron Corp., Dow Chemical, DuPont and Shell – all offer GLBT protections. HRC also notes that ExxonMobil's policy of not offering domestic partner benefits places the company in the minority of Fortune 500 companies.

ExxonMobil protections have been a sore point with gay rights groups since the company was formed by merging Exxon and Mobil in 1999. Mobil Corp. offered sexual orientation protections and domestic partner benefits, but after the merger Exxon's policies were carried forward. New employees were no longer offered domestic partner benefits.

HRC President Joe Solmonese said in a statement, “While the rest of corporate America recognizes and respects the diversity of their workforce, ExxonMobil continues to resist the most basic protections that should be afforded to Americans.”