Remove thawed steaks from refrigerator, pat dry with paper towels, season liberally with salt and pepper, and bring to room temperature on counter over about 20 minutes.
While waiting, preheat oven to 250 degrees Fahrenheit and place steaks on a wire-rack-lined baking sheet.
Roast in oven about 20 minutes, or until internal steak temperature reads 115 degrees Fahrenheit as per a meat thermometer.
In a large cast-iron pan on medium-high heat, add grapeseed oil, butter, and steaks to pan in that order.
Sear steaks on one side for 30 seconds, flip and butter baste for 30 seconds, then sear steak on remaining sides for 30 seconds each.
Rest steaks on a cutting board for 6 minutes before slicing; final temperature should read 130 degrees Fahrenheit for medium-rare doneness. For a different steak doneness, refer to the Omaha Steaks Cooking Chart. Slice steak against the grain into 1/4” slices.