In a glass bowl or freezer bag, combine olive oil, Worcestershire sauce, soy sauce, balsamic vinegar, Dijon mustard, parsley, rosemary, pepper, thyme, and garlic.
Add up to 2 pounds of steak and marinate for at least 1 hour or up to 4 hours.
Remove steaks and discard marinade.
Grill or broil to desired doneness.
