Preheat oven to 250˚F.
Set a wire rack inside a rimmed baking sheet.
Sprinkle the steak with salt and pepper.
Place steak on the wire rack and bake for about 30 to 35 minutes, or until internal temperature of the steak registers between 120˚F and 125˚F. Adjust the bake time if you like a more well done steak. *See Notes below for Cooking Temperatures. About 3 minutes before taking the steak out of the oven, heat the vegetable oil in a large cast iron skillet set over high heat.
Once it starts to smoke, add the steak to the skillet and cook for 1 minute.
Flip it over; add the butter, garlic, thyme, and rosemary.
Using a large spoon, baste the steak with the butter while cooking for about 1 minute.
Flip it over; baste and cook for 20 seconds.
Remove steak from skillet and transfer to a cutting board.
Let rest 5 to 8 minutes before cutting.
Serve.