What is the ruling on consuming company beverages after swearing, in a state of anger, not to consume them, knowing that they are an employee right?

It is permissible to retract an oath and offer expiation for it, which is feeding ten poor persons or clothing them or emancipating a slave. If one cannot find [the means], then fasting for three days. This is preferable if there is good in retracting it, according to the saying of the Prophet, may Allah bless him and grant him peace: "By Allah, if Allah wills, I never take an oath and then see something else as better than it, except that I do what is better and release myself from the oath."