Exhibit “A”

Representative Transactions 

I.  Development and Infrastructure Experience

A.  Upstream Development and Infrastructure

Representation of Eni Petroleum in structuring a successful joint bid to acquire the rights to develop a shallow water block in Mexico

Representation of the oil and gas subsidiary of Grupo Alfa S.A.B. de C.V., a Mexican conglomerate, in the negotiation of a joint operating agreement for an offshore block in Peru

Representation of Galp Energia in the drafting and negotiation of a seismic services agreement to support development of an oil and gas block located offshore of São Tomé e Príncipe.

Representation of Oil & Gas Invest, AG German exploration and production company in participation agreements for the development of oil and gas properties in Mississippi

Representation of Procter & Gamble in the negotiation of an oil and gas lease in Ventura County, California

Representation of Estaleiro Enseada do Paraguaçu, a Brazilian construction company, in the drafting and negotiation of subcontracts for the construction and installation of drilling and topsides components for installation on drillships for use in Brazil

Representation of a consortium of Korean oil and gas companies, including Daewoo, SK Energy Innovation and KNOC, in a dispute regarding the performance of a joint operating agreement for an onshore block in Peru

Representation of Estaleiro Enseada do Paraguaçu, a Brazilian construction company, in the drafting and negotiation of an engineering, procurement and construction contract for drillships with the national oil company of Brazil

Representation of the oil and gas subsidiary of Grupo Alfa S.A.B. de C.V., a Mexican conglomerate, in the drafting and negotiation of a joint operating agreement, a secondment agreement and other documents related to a joint bid with an American oil and gas company for a Services Agreement with the national petroleum company of Mexico

Representation of Ecopetrol S.A., the national oil company of Colombia, in structuring legislation and model contracts for the exploration and development of unconventional gas resources

Representation of Afren plc, a Nigerian oil and gas company, in drafting, structuring, and negotiating a contract for the transportation and installation of an offshore platform and related subsea systems

Representation of Afren plc, a Nigerian oil and gas company, in drafting, structuring and negotiating a contract for the engineering, design, procurement, and construction of an offshore drilling platform

Representation of Oil & Gas Invest, A.G., a German investment fund, in a participation agreement and a joint operating agreement for the development of natural gas reserves in Alabama

Representation of INPEX, the Japanese national oil company, in a rig sharing agreement and a drilling agreement to support operations in Suriname

Representation of Grupo Gallium, an Angolan natural resources company, in a joint venture for the development of a diamond mine in Lunda North, Angola

Representation of ARAR, Inc., a Turkish oil and gas company, in an international arbitration proceeding against a U.S. oil and gas company regarding a drilling contract and related transactions in the country of Georgia

Representation of Baker Hughes in preparing an alliance arrangement with the national oil company of Colombia

Representation of Petrobras, Brazil's national oil company, in drafting and negotiating an engineering, procurement, and construction contract and a drilling contract for an offshore petroleum production, gathering, processing, and delivery project

Representation of Kuwait Oil Company, Kuwait's national oil company, in the preparation and international roll-out of an enhanced engineering, procurement, and construction contract for upstream oil and gas production facilities

Representation of Engie (formerly GDF Suez) in the formation of a joint venture for the development of an LNG receiving and regassification terminal in Freeport, Grand Bahama and a related subsea pipeline linking that terminal with shore approach near Ft. Lauderdale, Florida

Representation of The Williams Companies in drafting and negotiating agreements and procedures for a petroleum solids lifting and processing terminal in Venezuela

Representation of The Williams Companies in drafting and negotiating an O&M contract, Shareholders Agreement, EPC Contract, and Transportation Agreement for an Ecuadorian oil pipeline project

Representation of Engie (formerly GDF Suez) in the construction and development of an LNG receiving and regassification terminal in Freeport, Grand Bahama and a related subsea pipeline linking that terminal with shore approach near Ft. Lauderdale, Florida, including land usage rights, pipeline rights of way and other matters

Representation of Standard Bank, a U.K. financial institution, in drafting a security package for a credit facility extended to a U.S. oil and gas company with E&P operations in the United States and Colombia

Representation of Ecopetrol S.A. in structuring procurement operations in the United States, including the drafting of related master supply agreements and master services agreements

Representation of an Grupo Gallium, Angolan oilfield services company, in a series of services contracts with international oil companies operating in Angola

Representation of Gallium Global Procurement, an Angolan oilfield services company, in negotiations for the formation of a joint venture with a U.S. oilfield services company

B.  Midstream Development and Infrastructure

Representation of the trading branch of SOCAR, the national oil company of Azerbaijan, in establishing crude oil trading operations in the United States

Representation of Ascent Resources, LLC in the negotiation of a joint venture to develop, own and operate gas gathering infrastructure in the Marcellus Shale

Representation of Galp Energia in negotiations surrounding the final investment decision for a Floating LNG platform to serve gas producing properties located offshore of Mozambique

Representation of an Galp Energia  in the negotiation of long term purchase and sale agreement for LNG

Representation of Ascent Resources, LLC in the negotiation of a wet gas gathering agreement and a natural gas liquids processing agreement to support midstream operations in the Utica Shale

Representation of Ascent Resources, LLC in negotiation of a dry gas gathering agreement to support midstream operations in the Utica Shale

Representation of Ascent Resources, LLC in the negotiation of a gas gathering agreement to support midstream operations in the Marcellus Shale

Representation of Mitsui in developing natural gas gathering, processing, and transportation infrastructure in the Marcellus shale formation

Representation of Motiva Enterprises, LLC in drafting refined products transportation agreements for a new pipeline facility in Louisiana

Representation of Motiva Enterprises, LLC in drafting and negotiating crude oil transportation arrangements for a proposed offshore port facility in Texas

Representation of J.M. Huber Corporation, a U.S. energy company, in the preparation of a model tanker voyage charter party agreement for use in worldwide spot-market transactions

C.  Downstream Development and Infrastructure

Representation of Farabi Petrochemicals in the negotiation of a joint venture for the development, ownership and operation of a petrochemical storage terminal in Saudi Arabia.

Representation of Ascent Resources, LLC in the negotiation of a natural gas liquids marketing agreement for production arising from the Utica Shale

Representation of Galp Energia in the drafting of an oil sales agreement for use in connection with offshore operations in Brazil

Representation of Motiva Enterprises, LLC in drafting and negotiating a master terminaling agreement for the storage of refined products

Representation of Motiva Enterprises, LLC in drafting and negotiating a series of purchase, injection, transloading, and blending agreements for the addition of biodiesel to streams of refined products

Representation of Motiva Enterprises, LLC in drafting and negotiating a long term and high volume refined products supply agreement

Representation of Richmond Development Corporation, a U.S. energy company, in the drafting and negotiation of an engineering, procurement and construction contract for a power generation facility in Pakistan

Representation of Motiva Enterprises, LLC in drafting and negotiating arrangements for the construction of a loading terminal and for pipeline transportation services for gasoline, diesel, ethanol, B100 and B99 biodiesel, and other refined products

Representation of Motiva Enterprises, LLC in drafting pipeline transportation agreements for refined products

Representation of a Bioverse, Canadian biodiesel trading company, in financing the construction and start-up of a biodiesel facility in Gonzales, Texas, and the long-term supply of B100 biodiesel

Representation of a Texas exploration and production company in gas marketing and gas processing arrangements

Representation of CITGO in negotiations of marketing, supply and shipping arrangements to support downstream sales and operations

Representation of Eni Trading in drafting a suite of model contracts for international and U.S. domestic crude and refined products trading operations

Representation of a 7-Eleven, Inc., a U.S. gasoline retailer, in drafting and structuring model contracts for gasoline supply, transportation, and distribution

Representation of Motiva Enterprises, LLC in drafting and negotiating arrangements for the long term supply of gasoline, diesel, ethanol, B100 and B99 biodiesel, and other refined products

Representation of a U.S. oil and gas company in a series of transactions for the purchase and sale of bulk quantities of fuel oil and diesel

Representation of Valero in drafting a crude oil processing agreement for use with a refinery located in Aruba

Representation of Motiva Enterprises, LLC in drafting and negotiating crude oil, sulphur, petcoke, and refined products transportation agreements for the expansion of a refinery located in Port Arthur, Texas

II. Mergers & Acquisitions Experience

A.  U.S. Domestic M&A

Representation of Swift Energy, LLC in the sale of oil and gas producing properties in Vernon Parish, Louisiana

Representation of Arendal S. de R.L. de C.V., a Mexican construction company, in the acquisition of an ocean-going dive support vessel from a bankrupt U.S. oilfield services company

Representation of a Ascent Resources, LLC in the negotiation of a sale of a gas gathering system in West Virginia and a gathering and processing agreement for the use of that gathering system.

Representation of PT Saka Energi Indonesia, an Indonesian state-owned upstream oil and gas company, in the $175 million acquisition of a 36 percent working interest in the Eagle Ford and Olmos shale formation rights to approximately 8,300 acres in Webb County, Texas

Representation of a Mueller Industries in the sale of oil and gas interests in Armstrong County, Gaines County and Reagan County, Texas

Representation of AGC Equity Partners, a UK-based private equity fund, in the acquisition of a minority equity interest in a U.S. shale and unconventional technology company

Representation of the oil and gas subsidiary of Grupo Alfa S.A.B. de C.V., a Mexican conglomerate, in the acquisition of oil and gas leases and the formation of a joint venture involving approximately 100,000 net acres in Kansas

Representation of Hawkwood Energy in the acquisition of a working interest and in related negotiations for the formation of a joint venture to develop oil and gas producing properties in Sioux County and Bluff County, Nebraska

Representation of the oil and gas subsidiary of Grupo Alfa S.A.B. de C.V., a Mexican conglomerate, in the acquisition of oil and gas leases and working interests in Texas, Oklahoma and Colorado, including acreage on the Osage Nation reservation

Representation of the oil and gas subsidiary of Grupo Alfa S.A.B. de C.V., a Mexican conglomerate, in the strategic acquisition of acreage in the Eagle Ford Shale formation in Texas

Representation of 7-Eleven, Inc., a U.S. gasoline retailer, in the acquisition of a wholesale refined products marketing and distribution business

Representation of Oil & Gas Invest, A.G., a German exploration and production company in multiple acquisitions and developments of oil and gas producing properties in Alabama and Mississippi

Representation of the oil and gas subsidiary of Grupo Alfa S.A.B. de C.V., a Mexican conglomerate, in a $1.35B venture with a U.S. independent oil and gas company and an Indian multinational company to jointly develop acreage in the Eagle Ford Shale formation in Texas

Representation of Mitsui in a $1.4B venture with a U.S. independent oil and gas company to acquire and jointly develop acreage in the Marcellus Shale formation in Pennsylvania and New York

Representation of Afren plc, a Nigerian oil and gas company, in the purchase, refurbishment, and resale of an offshore drilling platform

Representation of Longfellow Exploration, a Texas exploration and production company, in the disposition of oil and gas producing properties in the West Texas Overthrust Belt, Pecos County, Texas

Representation of Anadarko Petroleum in the sale of oil and gas producing properties in the Elk Basin

Representation of Anadarko Petroleum in the preparation and negotiation of a master formation agreement for a joint venture to own and operate oil and gas producing properties in the Permian Basin

Representation of Encana Corporation in the acquisition of a U.S. oil company with oil prospects in Texas and the Gulf of Mexico

Representation of Engie (formerly GDF Suez) in the purchase of a project for the development of an LNG receiving and regassification terminal in Freeport, Grand Bahama and a related subsea pipeline linking that terminal with shore approach near Ft. Lauderdale, Florida

Representation of Engie (formerly GDF Suez) in the formation of a joint venture for the purchase of usage rights at an LNG receiving and regassification terminal in Maryland

B.  International M&A

Representation of Macquarie in a consortium to acquire an interest in the Gasoducto Sur Peruano onshore pipeline project in Peru.

Representation of Chevron in the divestiture of its minority working interest in an onshore oil and gas block near Soyo, Angola, including an analysis of plugging, abandonment, demining and environmental obligations and liabilities in Angola.

Representation of JX Nippon Oil & Gas Corporation, a Japanese energy company, in a bid for the farm-in of a working interest in an offshore block in Angola.

Representation of Oranto Petroleum, an African energy company, in negotiations regarding the farm-in of an offshore block in Côte d´Ivoire

Representation of OGX, a Brazilian oil and gas company, in a farm-in in Mozambique

Representation of the Delek Group, an Israeli energy company, in preparing and negotiating a farm-out arrangement for offshore oil and gas producing properties in Guinea- Bissau, West Africa

Representation of Singapore Petroleum Company in the acquisition of a U.S. company holding a participating interest in oil and gas producing properties in and around the Zhao Dong Block, Bohai Bay, offshore China

Representation of an Indonesian mining company in the acquisition of a U.S. company holding a participating interest in oil and gas producing properties in and around an area onshore and offshore of Tarakan Island, Indonesia

Representation of a Thai oil and gas company in the acquisition of oil and gas producing properties located in and around the Tantawan area of the Gulf of Thailand

Representation of The Williams Companies in drafting and negotiating agreements for the acquisition of natural gas fractionation, extraction, transportation, and storage facilities in Venezuela

Representation of Engie (formerly GDF Suez) in the purchase of a long term charter party agreement for an LNG tanker