All too often, men suffering from oily skin treat their skin even more badly in an attempt to dry out the shiny areas no matter what. On the contrary, you have to respect oily skin and treat it gently. Daily hygiene is very important to control sebum twice a day, morning and evening.
No products that contain alcohol, not too many over-zealous face scrubs and, above all, make sure the skin is properly hydrated. Yes, oily skin needs water! Not using a moisturiser because your skin is too shiny is a mistake. Whatever product you use, make sure the formulation contains what is required to meet the skin’s needs without making the shiny skin problem worse - ideally, it should have a mattifying effect.
Last but not least, gentle exfoliation two or three times a week will lessen the risk of blemishes appearing, something that should never be neglected if you have oily skin.