Why “The Langenkamp Dictionary”?
The choice of name is a small act of continuity. This page explains the lineage so the choice is not mysterious.
Robert Darwin Langenkamp (b. 1914)
My grandfather, Robert Darwin Langenkamp, was an Oklahoma oilman who spent his working life in and around the petroleum industry. In 1974, he wrote the first edition of the Handbook of Oil Industry Terms & Phrases, published by PennWell. New editions followed in 1977, 1981, 1984, and 1994. The book was a working reference — written for people who needed to use the language of the oilfield, not for marketing departments — and it became a small standard for several decades. PennWell continued issuing updated editions long after he stepped back from active writing.
What stuck with the family was less the commercial life of the book than the impulse behind it: that an industry’s working terminology deserves to be written down clearly by someone who actually understands it, made affordable, and made available to the next generation of practitioners.
Robert Dobie Langenkamp (1936–2023)
My father, Robert Dobie Langenkamp, picked up that work and carried it forward. He co-authored the 6th edition of the Handbook of Oil Industry Terms & Phrases (PennWell), updating his father’s foundation with terms and concepts that had entered the industry in the intervening decades.
His own career sat at the intersection of oil-and-gas practice, law, and policy:
- Independent oil and gas exploration company owner for 15 years
- Adjunct, then full Professor of Energy at the University of Tulsa College of Law
- Director of the National Energy-Environment Law & Policy Institute (NELPI) at the University of Tulsa
- Energy consultant for the U.S. Department of State and U.S. Department of Energy in Kazakhstan, the Republic of Georgia, São Tomé, and Iraq
- Lecturer on international oil and gas law in Ghana, Angola, Uganda, Egypt, and Argentina
He also writes, lectures, and consults on energy issues from Tulsa. His career took the work of a single industry handbook and extended it into international energy law and policy across multiple decades and continents.
The Voices of Oklahoma oral-history project recorded an interview with him in 2020 (still available online) — a primary source for anyone who wants the longer biography in his own words.
Why a dictionary, again, two generations later?
I am the third Langenkamp in this line of work, in a different industry. I came up through international investment banking in Hong Kong, ran a security business in New Zealand, and have been teaching strategy and international management at the University of Massachusetts Amherst since 2022. My current research focus is the analysis of equipment auctions and, more recently, the operational practice of agentic AI in higher education.
Agentic AI in 2026 has the same problem oil-and-gas had in 1974: a flood of new terminology, mostly issued by vendors with an interest in keeping the language murky, and not enough working references written by people who actually use the systems day-to-day. My senior colleagues, my students, and my own future-self deserve a clearer reference than the one currently available in trade press and product launches.
The Langenkamp Dictionary of Agentic AI Terminology is the result. It is a free, openly licensed, working glossary, written in the same spirit as my grandfather’s handbook: short entries, honest definitions, no marketing copy, no axe to grind, no charge.
Different industry. Same impulse.
The Landman moment
For readers who arrived here via Taylor Sheridan’s Landman (Paramount+, 2024–): the oilfield terminology that show flaunts comes from books like my grandfather’s. Landman has put petroleum vocabulary back into casual conversation in a way it hadn’t been since perhaps There Will Be Blood. The cultural lift is real, and it explains why a family with three generations of oil-industry context might, in 2026, decide to plant a flag in the next industrial wave’s terminology while the public is still curious about the last one.
If this page is what brought you to the dictionary: welcome. The entries are next door.
A note on tone
The dictionary itself is restrained — no flourishes, no marketing prose, just terms and what they mean. This page is the one place where a little family pride is allowed. That seems like a fair trade.
Maintained by Matthew D. Langenkamp / 雷邁德. Dictionary entries: entries/. Topic index: topics.md.