Okla. Stat. tit. 60 § 69 : Property — Estates in Real Property —Uniform Environmental Covenants Act — Duties of Life Tenant TEXT PDF The owner of a life estate must keep the buildings and fences in repair from ordinary waste, and must pay the taxes and other annual charges, and a just proportion of extraordinary assessments benefiting the whole inheritance. Okla. Stat. tit. 60, § 69 R.L. 1910, § 6644.