Maverick Energy Group Completed Gas Pipeline in Big Foot Field and Commencement of Natural Gas Sales (Press Release)

Tulsa, OK, May 16, 2007 (Pink Sheets News Service) — Maverick Energy Group Completed Gas Pipeline in Big Foot Field and Commencement of Natural Gas Sales

TULSA, OK - May 17, 2007 - Maverick Energy Group, LTD (Other OTC: MKGP) a member of Z2, LLC (Z2) is pleased to announce that work on a portion of the refurbished natural gas pipeline system has been completed in the Big Foot Field in Frio County, Texas, where Maverick serves as the operator and is a member of Z2. The pipeline is capable of carrying approximately 500 MCF of gas per day. Maverick also recently started selling natural gas produced in the Big Foot Field.

"We are pleased that construction has been completed on the new natural gas delivery pipeline in the Big Foot Field which enables the Z2 members to conveniently transport the natural gas we are producing directly to the first purchaser. We are already pushing 150 to 200 mcf of gas per day through the new system. That number should steadily climb over the next 90 days or so until we reach full capacity of 500 mcf of gas being sold per day. Coupled with the previously announced increases in producing wells and the expected schedule of as many as 36 new wells operating in Big Foot within a year and their resulting oil and gas, the outlook is extremely bright for Maverick and the other Z2 members," says Jim McCabe, CEO of Maverick Energy Group, LTD.

Maverick announced earlier this month that that oil production in the Big Foot Field had increased from approximately 7,500 barrels of oil per month in August 2006 to in excess of 10,000 barrels of oil per month in March 2007 and it has set a goal of drilling three new puds (wells) per month in the Big Foot Field for the foreseeable future. This increase in production should translate into an additional $1,000,000 to $1,250,000 in revenue per month for Maverick and the Z2 members.

Drilling operations in the Big Foot Field are being funded through a $40,000,000 Advancing Credit Facility which Z2, LLC closed with Gasrock Capital, LLC in August of 2006.

About Maverick Energy Group, LTD

Maverick Energy Group LTD, based in Tulsa, OK, is engaged in the domestic exploration and production of crude oil and natural gas. Its management team has over 150 combined years of experience in the oil & gas and financial services industries. Maverick Energy is the Operator of the "Big Foot Field" in Texas, which was originally developed by Royal Dutch Shell (RDS-A). The Big Foot Field has approximately 300 production wells in the field of which approximately 240 are presently revenue producing. Maverick is also the part owner of several producing natural gas wells and owns additional natural gas leases in West Virginia. The President of Maverick also serves as Chief Financial Officer of Z2, LLC. For more information on Maverick Energy, please visit the company's website at: www.maverickenergygroup.com or www.pinksheets.com.

This release includes forward-looking statements, which are based on certain assumptions and reflects management's current expectations. These forward-looking statements are subject to a number of risks and uncertainties that could cause actual results or events to differ materially from current expectations. Some of these factors include: general global economic conditions; general industry and market conditions and growth rates; uncertainty as to whether our strategies and business plans will yield the expected benefits; increasing competition; availability and cost of capital; the ability to identify and develop and achieve commercial success for new products and technologies; the level of expenditures necessary to maintain and improve the quality of products and services; changes in technology; changes in laws and regulations, includes codes and standards, intellectual property rights, and tax matters; the uncertainty of the oil & gas market; including the geopolitical environment not anticipated; our ability to secure and maintain strategic relationships and distribution agreements. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Contact:
Tony Drake
Phoenix IR Associates
281-579-1602
phoenix-ir@earthlink.net