Linda Ellis began learning various aspects of the oil business from her father's oilfield business activities while growing up in Midland, Texas, and, her own experiences with major oil and gas companies, beginning at Shell Oil in 1966 and later at Pan American Production Company, now British Petroleum (BP) respectively in Midland and Houston, Texas. After moving to Austin, she became a licensed real estate agent and was an active and successful Realtor for many years. In 1997, she met Mr. Herzfeld through a commercial Realtor associate. Herzfeld had just moved his oil and gas company, Property Development Group, Inc. (PDG) to Austin from Dallas. After sharing her oil & gas background, a job was proposed. Shortly thereafter, she joined PDG as the office and accounts manager and was instrumental in setting up all accounting software and investor and vendor contact files. In addition, her duties include office administration, oil & gas accounting, distribution of operating statements, revenue checks, joint interest billings, accounts payable and receivables, plus maintaining good communication with working interest owners, mineral and surface owners, and field vendors for all projects. She is also the Vice President of Investor Relations for Riverdale Oil and Gas Corporation, an OTC Market Public Company.

Ms. Pope was employed with Property Development Group, Inc. (PDG) in June 2015. At PDG, she is expanding her knowledge and administrative skills while working closely with the experienced staff, as well as vendors and investors. Her duties include various aspects of oil and gas accounting, operating statement distribution, file management, research activities, management of marketing information, and providing the oil and gas compliance requirements to the various regulatory agencies.

Mr. Herzfeld began a multi-faceted career in the oil and gas industry in 1971, afetr his service as a Captain in the United States Marine Corps. His expertise includes field activities at depth from 500 to 18,000 feet, including pumping, flowing, water flooding and gas-lifting operations for production. He also has experience in gas gathering, pipeline operations, gas compression and refining operations. His work with magnetic geophysical exploration has led to major hydrocarbon reserves in the U.S., Canada, and Australia. Mr. Herzfeld has been widely published in the Oil and Gas Journal, World Oil, and proceeding from major seminars within the oil and gas industry. He received a B.A. degree from the University of Texas at Austin in 1968 and is an active member of the Society of Petroleum Engineers (SPE); American Association of Petroleum Geologists (AAPG); Geological Society of America (GSA); and, New York Academy of Sciences (NYAS). Mr. Herzfeld is CEO of Property Development Group, Inc. (PDG), a Texas operations company; Austin Oil & Gas (AOG), a consulting and engineering comapany specializing in geological, geophysical, and production activities; Energy Gathering Systems (EGS), a gas gathering system; and, is the Board Chairman and CEO of Riverdale Oil and Gas Corporation (RVDO), a publicly traded oil and gas company, listed on the OTC Markets.


Hannah Pope

Administrative Assistant

Property Development Group

Ron Herzfeld


Property Development Group

Linda Ellis

Office Manager

Property Development Group