The website I've linked is not unique to the Tulsa area but is just a general website for the snakes of Oklahoma.

You'll likely find "your" snake on it though.

Dawn

Here is a link that might be useful: Oklahoma Snakes

speckled kingsnake? just guessing, but they are very common in NE Oklahoma. Very docile. Only other large black snake around here that would be common is a black rat snake. Not sure you'd see much in the way of yellow markings on that one though.

I think it could be an easter garter snake. They are black with parallel yellow stripes. They are common in this area, I used to catch them all the time as a kid.

Here is a link that might be useful: pic of them

It's a black ratsnake. Thanks for the links.

The black ratsnake has different coloring patterns, but one is just like what I saw.

Thanks for your help.
Sammy