Let it come to room temp before cooking by any method. Rub on both sides with coarse salt and cracked black pepper a few minutes before cooking.
In a non stick pan larger than the steak (don't crowd it) add a drizzle of olive oil and a pat of butter (for flavor n browning, the combo reduces the smoke point of the fats), allow to melt and blend then increase heat to med high/high- put your hand over the surface of the edge of the pan- if you can only hold it there about 3-5 seconds comfortably you're ready. longer, pan isn't hot enough, shorter its too hot (and your fats are likely pissed).
gently place that baby in the center of the pan and let her go a few minutes. don't start getting nervous and peekabooing under its skirt, just let it go. using TONGS, not a fork, pick it up and turn it over, making sure you move the fats around the pan a bit to distribute them evenly. Cook in second side- again, just let it be and don't cover it, you have no wish to steam the meat.
Depending on how you want it done, three to five minutes per side is plently unless the steak is very thick (pan frying is only good for rare is they are super thick cut). If you are a heathen blasphemer who likes it......can't beleive Im even gonna say it...well done. give it up to 7 minutes per side. My guy likes 'em really rare- two minutes for that style.
this next part is very important!!!!! remove with the tongs from the pan, plate it and LET IT REST up to five minutes. it's still cooking you see, and by letting it rest you are allowing moisture to settle. if you cut into it now it will leave a lake under your steak. while it's resting, toss in a splash of beer n use a spatula to loosen yummy bits, keep the heat fairly high, the beer with pretty much boil immediately loosening up more good flavors. throw in a handful of slices onions and a large spoonful of chopped garlic. move those around the pan a little to coat in flavor n cook just a bit, letting the liquids evaporate and the goodies to brown a bit. put those on top of your steak, with wither a spoonful of sage butter (soften butter, add chopped sage, voila!) or a generous sprinkle of gorgonzola or blue stilton cheese.
I give you the perfect pan fried steak.