95 thuderbird coding p0133

Ive got a 95 thunderbird with a v8 and automatic transmission. The service engine soon light came on and when i pulled the code it came back "p0133". I'm guessing its an oxygen sensor, but just wondering if anybody could help me out with confirming it.
thanks
mike

google OBDII
You should find a list for the codes.

Try here: http://www.obdii.com/