Oracle is a large enough company that I'm sure they have an employee resource group for LGBT people that you could reach out to. If you do go to HR, document /

Oracle is a large enough company that I'm sure they have an employee resource group for LGBT people that you could reach out to. If you do go to HR, document /everything/ -- names and dates when the harassment started, exactly who has been involved, who you talk to and when in HR, and what they said. HR isn't there to protect you; they're there to protect the company from liability. Generally, in these sort of situations, the liability is best resolved by disciplining those bothering you, but it can swing the other way often enough that it's best to have your ducks in a row.