Sentence:  The casual approach to mineral leasing, where each lease was typed up on an individual basis, was no longer appropriate. Efficiency demanded a standardized form and one, moreover, that could be completed by the <WSD>land agent</WSD> in the field. 
Meaning of the word marked with <WSD> tags:  (US) An employee of an oil or mining company who negotiates with landowners for rights to extract oil or minerals from their property.