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CIRCUIT RESEARCH LABS INC. FOURTH EXTENSION AGREEMENT (2001-09-20)

CIRCUIT RESEARCH LABS INC. FOURTH EXTENSION AGREEMENT (2001-11-09)

GALAXY ENERGY CORP. FOURTH EXTENSION AGREEMENT (2003-09-08)

THIS FOURTH EXTENSION AGREEMENT is made and entered into effective September 5, 2003, by and between Pioneer Oil, LLC, a Montana limited liability company, of Billings, Montana ("Pioneer") and Dolphin Energy Corporation, of Miami, Florida ("Dolphin").

TOLLGRADE COMMUNICATIONS INC \PA\. Fourth Extension Agreement (2005-03-03)

This Fourth Extension Agreement is dated December 14, 2004 between Tollgrade Communications, Inc., having an address at 493 Nixon Road, Cheswick, PA 15024 (“Tollgrade”) and Dictaphone Corporation, acting through its Electronic Manufacturing Services Division, with an address at 3900 W. Sarno Rd., Melbourne, FL 32934 (“Dictaphone”).

BIOJECT MEDICAL TECHNOLOGIES INC. FOURTH EXTENSION AGREEMENT (2009-09-01)

BIOJECT MEDICAL TECHNOLOGIES INC. FOURTH EXTENSION AGREEMENT (2009-09-01)

PROSPECT GLOBAL RESOURCES INC.. FOURTH EXTENSION AGREEMENT (2013-12-16)

THIS FOURTH EXTENSION AGREEMENT (this “ **Agreement** ”), executed as of the 10th day of December, 2013 (the “ **Effective Date** ”), by and among The Karlsson Group, Inc., an Arizona corporation (“ **Karlsson** ”), on the one hand, and Prospect Global Resources, Inc., a Delaware corporation (“ **Prospect DE** ”), Prospect Global Resources, Inc., a Nevada corporation (“ **Parent** ”), Apache County Land & Ranch, LLC, a Nevada limited liability (“ **Apache** ”) and American West Potash, LLC, a Delaware limited liability company (“ **AWP** ” and collectively with Prospect DE, Parent and Apache the “ **Prospect Parties** ” and each a “ **Prospect Party** ”) on the other hand, is made with reference to the following facts:

FAR EAST ENERGY CORP. FOURTH EXTENSION AGREEMENT (2014-10-31)

This AGREEMENT (this "Agreement") is dated as of October 30, 2014 and made between:

Diamond Resorts International, Inc.. FOURTH EXTENSION AGREEMENT (2015-08-11)

This Fourth Extension Agreement ("Extension Agreement") is entered into on August 5, 2015 by and between Diamond Resorts Centralized Services Company (the "Company") and Praesumo Partners, LLC ("Independent Contractor").