Season steaks generously with salt and pepper on all sides and allow to rest at room temperature for 15 minutes.
Heat olive oil in a heavy cast-iron skillet over medium-high heat until it begins to shimmer.
Place steaks in the skillet and sear for 4 to 5 minutes per side for medium-rare, or until internal temperature reaches 130 degrees Fahrenheit.
Remove steaks from the pan and place on a cutting board to rest for 10 minutes.
Reduce heat to medium and melt 2 tablespoons of butter in the same skillet.
Add shrimp to the skillet and sauté for 2 minutes per side until pink and opaque; remove shrimp and set aside.
Add the remaining 2 tablespoons of butter and minced garlic to the skillet, cooking for 60 seconds until fragrant.
Pour in the white wine to deglaze the pan, scraping up browned bits from the bottom.
Whisk in the heavy cream and oregano, simmer for 3 to 5 minutes until the sauce thickens slightly.
Return the shrimp to the pan and toss to coat in the cream sauce.
Serve the steaks topped with the garlic cream shrimp and garnish with fresh parsley.