Season chicken pieces with salt, pepper, and oregano.
Heat olive oil in a large skillet over medium-high heat.
Add chicken to the skillet and sear until browned on all sides, approximately 5 to 7 minutes.
Remove chicken from the skillet and set aside.
Melt butter in the same skillet and add minced garlic, sautéing for 1 minute until fragrant.
Add the rinsed rice to the skillet and toast for 2 minutes, stirring frequently to coat in fat.
Pour in the chicken broth and return the chicken and any juices to the skillet.
Bring the mixture to a boil, then reduce heat to low, cover with a tight-fitting lid, and simmer for 15 to 18 minutes until rice is tender and liquid is absorbed.
Remove from heat and let stand covered for 5 minutes.
Fluff the rice with a fork, garnish with chopped parsley, and serve.