Pull the steak out of the fridge 20 minutes before cook time. Pat each side with a paper towel to remove excess moisture. Season each side generously with salt and pepper.
In a pan over high heat, add the oil. Add the steak and cook for 3 minutes (without moving the meat), then flip and cook for an additional 3 minutes, until deeply browned.
Reduce the heat to medium-low. Add the butter, garlic, thyme, and rosemary. Allow the butter to melt.
Using a potholder, gently tip the pan to the side so the butter and herbs pool on the side. Using a spoon, continuously baste the meat while cooking for an additional 1 1/2 minutes on each side.
Remove to a plate, loosely cover with foil, and allow to rest for 10 minutes before eating.
You can drizzle some of the butter from the pan after slicing the meat to make it even richer.