How to prevent oil splattering when placing steak in pan?
Three recommendations:


If you pat the meat with a paper towel, it will absorb some of the moisture without removing salt or other seasoning.
You need very little oil (if any) in the pan to fry a steak, since fat will melt out of the steak. Use less oil, or put the oil onto the steak rather than in the pan. Then there will be much less oil to spatter.
Use a tool such as a spatula or tongs to place the steak in the pan, so your hands are further from it.