Basic attributes
There are eight basic attributes in Oblivion. Each of them, except Luck, governs three Skills, as detailed in Relation between Attributes and Skills:
Agility Endurance Intelligence Luck Personality Speed Strength Willpower
Each of these attributes has a base value and a current value. The base value is, generally speaking, the value without any active enchantments, magical effects, diseases, or other temporary modifiers. The current value, on the other hand, is the value after all such modifiers are taken into account. If the current value is different from the base value, then its value in your journal will be colored (green if boosted, red if negatively influenced). The base value of each attribute normally can only range from 0 to 100. Each time your character levels up you have an opportunity to permanently increase the value of three attributes, up to the maximum value of 100. There are also a limited number of opportunities to receive attribute bonuses as rewards. Some of these bonuses (in particular, the Oghma Infinium) directly alter the attribute base values. The others are implemented as abilities with a Fortify Attribute effect. Because they are abilities rather than standard enchantments or spells, these bonuses are effectively treated as if they altered your character's base attribute values. Abilities are the only way to temporarily alter the base value of an attribute. The current value of an attribute can be boosted past 100, and many, but not all, benefits of the attribute continue to increase for values greater than 100 (see Magical Effects on Attributes). Most aspects of game play are based upon the current value of the attribute.