Super easy chicken marsala

I half followed a recipe on allrecipies.com to make this. I'm going to write it out how I did it (or to the best I can b/c I didnt measure)

Ingredients:

• 5 thin boneless/skinless chicken breasts
• 1/2 c. flour
• 1 t. salt
• 1 t. pepper
• 1 t. oregano
• 2 T butter
• 2 T EVOO
• 1 pkg mushrooms; sliced
• 1 c. marsala wine

Directions:

• In a ziploc bag, mix together the flour, salt, pepper, and oregano.
• place the chicken breasts in the bag and shake until they are coated.
• In a large skillet, melt the butter and oil on medium heat
• Place the chicken in the skillet and brown on each side
• Add mushrooms and wine; cover and lower heat. Simmer until chicken is done.