Lost Windmill....?

I have been pondering this for a few days now and thought I would just throw it out there just in case anyone had some insight. Do you know what these are?

Last Tuesday night, we were pulling out of Senor Salsa's, when two semi-trucks drove North on 75. Each of them were carrying one of long curved things. I thought they looked like huge windmill blades. They were being escorted by several pilot vehicles and slowed traffic down a bit.

I didn't give it another thought until Thursday morning. I was making the drive from Nowata to Coffeyville to Caney and back to Bartlesville when I drove up behind what looked to be the same entourage. Two semis with many pilot vehicles....driving South on 75. I followed them all the way back to Bartlesville where I turned off and they continued.

I wondered if they were indeed the same trucks I saw Tuesday night and if so.....what had they been doing since then and why were they going back the same way they came....?

THEN...Friday afternoon, as I was driving South on 75 to Tulsa, I saw a semi driving North that was carrying a huge square thing with round openings on each side....just the right size that those huge blades would fit in.

Soooo......is there a wind farm somewhere in NE Oklahoma or Southern Kansas? Are they looking for the parts for a new windmill? If so.....they are wandering around down here in Bartlesville...