Cut each whole chicken wing into two pieces at the joint. Cut off and discard the wing tips.
Heat the oil and ginger in a wok or deep skillet over high heat. Add about one-third of the chicken wings and cook, stirring, for about 3 to 4 minutes until browned. Remove and repeat with the remaining wings, one-third at a time.
Remove the ginger and drain the oil from the wok.
Add the oyster sauce, wine or sherry, sugar, soy sauce, and water to the wok and reduce the heat to medium-low. Add the browned wings to the wok, cover the pan, and simmer for 10 minutes. Remove the lid and continue cooking for 10 to 15 minutes longer, basting frequently with the sauce.
Serve the glazed wings hot with rice or noodles, or serve them as an appetizer or snack.