In a large pot, over medium heat, heat oil. Add onion and jalapenos and cook until soft, about 5 minutes. Add garlic, chili powder, oregano, paprika and cumin and cook until fragrant, 1 minute. Add green chilis, chicken, broth and season with salt and pepper. Add the bacon. Bring to a boil, then reduce heat and simmer, covered, 10 to 12 minutes, until chicken is tender and cooked through.