Founded in 1952, DAPL is one of the largest Landman associations in the United States. As a non-profit organization, its primary objectives are to advance the profession of landwork; advocate continuing education; uphold the honor and integrity of the oil, gas and minerals industry; cultivate cordial relationships among its members; perpetuate the history of the land profession and the memory of its members; and abide by, foster and uphold its code of ethics.