As a standard condition, it is not recommended to use oil based lubricants over a latex condom. Oil-based lubricants should never be used in conjunction with latex or polyisoprene condoms.
Oil based lubricants are known to react with molecular structure of the latex leading to its disintegration. To know it practically, you can just take out a latex condom and apply baby oil and see what happens. You can find the condom begins to disintegrate within few minutes.
If the condom is near its expiry state, you can find it getting disintegrated even faster, probably within 2 or 3 minutes.
But the good news is most of the personal lubricants available in the market now is not oil-based. So, you can simply buy personal lubricant of any known brand and use it without any second thought.