Combine flour, baking soda, baking powder and salt in a bowl.
Use a mixer to blend together the eggs, sugar, butter, vanilla, lemon extract and lemon juice in a medium bowl.
Pour wet ingredient into the dry ingredients and blend until smooth.
Add oil and mix well.
Pour batter into a well greased 9×5-inch loaf pan.
Bake at 350 degrees for 45 minutes or until a toothpick stuck into center of the cake comes out clean.