UPDATE, 5:13 p.m. -- Chevron Public Affairs Manager Carla Musser provided an update just after 3 p.m.: "Chevron had a small leak earlier in the morning at the Kern River field and we shut in China Grade Loop for cleanup. The road has now been reopened for traffic."
China Grade Loop east of Manor Street was shut down Friday morning due to an oil leak.
The rain caused the leak to go on to the roadway.
Crews are using vacuum trucks to clean the leak up.
No one was injured and the road was closed out of caution.
There was no exact estimated reopen time.