Damian J. Arguello
Gregory R. Danielson
Radcliffe Dann IV
William J. Duffy
Roger L. Freeman
Albert Givray
Randall E. Hubbard
John R. Jacus
Lamont C. Larsen
Judith M. Matlock
Zach C. Miller
R. Kirk Mueller
Barbara J. Mueller
David Neslin
Laura J. Riese
Michael Snider
Eric Waeckerlin
Nicole M. Abbott
Of Counsel
Dean C. Miller
Of Counsel
Anastasia D. Carter
Brenna K. Finn
Mave A. Gasaway
Matt Hartford
Chelsea L. Huffman
Josh Neely
Greg Nibert
Sam Niebrugge
Charles L. Kaiser
Senior Of Counsel (Retired)

Energy Industry

The energy industry is in constant regulatory and commercial flux, and Davis Graham & Stubbs LLP has the expertise and acumen to help its energy clients successfully respond to new developments. We provide a seamless array of litigation, transaction, permitting, and counseling services specifically targeting the energy industry. Our lawyers apply their in-depth knowledge of the oil, natural gas, coal, coalbed methane, electric, wind, solar, and water industries to their particular fields of legal expertise to deliver sophisticated solutions to energy-industry clients. 

We represent clients in both transactional work and litigation of oil and gas and mining industry disputes, including federal and state governmental enforcement cases. We practice before the Federal Energy and Regulatory Commission and state public utilities commissions in gas and electric restructuring proceedings and other types of proceedings. Our lawyers work with clients in the legal aspects of oil and gas exploration, operation, production, sales, transportation, refining, and financing. In addition, we handle acquisitions and divestitures of oil and gas and mining assets. Further, our lawyers are involved in all aspects of the oil and gas and mining permitting process by working with federal, state, and local officials to comply with the various regulatory permitting statutes, rules, and regulations.  Combined with other energy lawyers and the broader group of tax, corporate, regulatory, environmental, public lands, and litigation lawyers who are experienced in oil and gas matters, DGS offers one of the strongest oil and gas and mining practices in the U.S.

DGS energy attorneys help clients take advantage of emerging opportunities in the renewable energy and transportation sector in the western U.S. including wind, solar, biomass, alternative and mass transportation, and other ventures. Our diversity of experience and practical understanding of the link between project components distinguishes us from many firms and adds value to client efforts. Our experience includes traditional legal services – such as the drafting and negotiation of power purchase agreements, transmission agreements, and other contracts – as well as specialized, renewable energy-specific expertise.

When our energy clients find themselves facing a dispute, our trial lawyers zealously represent their interests throughout the dispute resolution process. We practice before federal and state public utilities commissions in gas and electric utility regulatory proceedings, including resource and transmission planning, renewable energy portfolio standards, and more traditional utility regulation proceedings, such as rate cases, rule-makings, competitive issues, independent power production, utility mergers and acquisitions, and major public utility facility (transmission lines, substations, and pipelines) siting proceedings. Our trial lawyers are well versed and well respected in the energy industry. We address a wide range of litigation needs relating to antitrust, breach of contract, fraud, intellectual property, securities issues, unfair competition, public utilities regulation, white collar criminal defense, and many others.

February 2015

Air Quality Summit

It's hard to deny that air quality regulations are one of the most important government initiatives impacting business and industry today. To help understand what the latest and likely future air quality requirements will look like, we have assembled three panels consisting of some of the leading federal and state regulators, as well as several industry and air quality planning experts, to provide their perspectives.

January 2015

Colorado Oil and Gas Conservation Commission Adopts Changes to Enforcement and Penalty Rules

On January 5, 2015, the Colorado Oil and Gas Conservation Commission (COGCC) amended Rules 522 and 523 governing enforcement and penalties. These amendments implement House Bill 14-1356, which the legislature adopted last April.

December 2014

Here We Go Again - Key Legal Issues for Upstream Energy Companies Raised by Recent Declines in Oil Prices

After a period of relative stability, volatility in global oil prices has returned with a vengeance in recent weeks. Slow economic growth in many regions, OPEC inaction, and surging U.S. production have combined to cause a precipitous fall in the price of oil, which continues to hit new multiyear lows.

High Risk, Questionable Reward

On July 31, 2014, the U.S. Environmental Protection Agency (EPA) published a request for information (RFI) on various changes to the Risk Management Program (RMP) under Section 112(r)(7) of the Clean Air Act, including completely replacing the current RMP rule and its sister regulation, the Process Safety Management (PSM) standard, with a new framework for regulating high-risk industries. The comment period associated with the RFI closed on October 29, 2014. EPA has published over 570 comments submitted by industry members, state and local agencies, public citizens, and non-governmental organizations in response to the RFI. This Client Alert analyzes the bulk of those comments for common themes that illustrate anticipated areas for programmatic revision. It further identifies certain ideological conflicts which must be resolved before any final rule can issue with broad-based support.

RFI Background

In response to Executive Order 13650, entitled "Improving Chemical Facility Safety and Security," was issued August 1, 2013 in response to several recent major chemical accidents, including the explosion at the West Fertilizer Facility in West, Texas. The Executive Order required numerous federal agencies to form a Chemical Facility Safety and Security Working Group (Working Group) to identify how to reduce the incidence of major chemical incidents at chemical facilities. On May 1, 2014, the Working Group issued its report to the President recommending a number of initiatives, including modernizing the RMP and PSM standards by May 1, 2015. EPA and the Occupational Safety and Health Administration (OSHA) both issued RFIs intended to assist in determining whether and how to modernize the RMP and PSM standards. Following-up on publication of the Working Group's report and OSHA's RFI, which signals that OSHA may apply an expanded PSM program to ammonium nitrate, reactive chemicals, and oil and gas drilling, servicing, and production facilities, EPA published its own RFI intended to improve and/or expand its RMP rule.


November 2014

Let's Talk Turkey About EPA's Proposed Lower Ozone Standards

Today, EPA issued its long-awaited new National Ambient Air Quality Standard (NAAQS) proposal for ground level ozone, the federal health-based standard that states must decide how to meet. The new primary 8-hour ozone NAAQS, which EPA is proposing to set at between 65 and 70 parts per billion (ppb), represents a significant tightening of the standard from the current level of 75 ppb and would put a significant portion of the country in non-attainment. The agency is also taking comment on setting the primary NAAQS as low as 60 ppb, which could drastically expand non-attainment designations even further. The agency has also proposed tightening the secondary ozone standard, which exists to protect “public welfare” (as opposed to public health) values such as soils, water, crops, wildlife, weather, economic values, visibility and climate, and personal well-being.

Today’s proposal marks yet another substantial federal air quality action by EPA in a year that has seen, perhaps, as many significant air quality rules or court decisions as any on record. These include the U.S. Supreme Court’s validation of EPA’s Cross State Air Pollution Rule (CSPR), the Court’s ruling on the extent of EPA’s authority to regulate CO2 from stationary sources in the Utility Air Regulatory Group case, EPA’s proposed Clean Power Plan focusing on CO2 reductions from coal-fired power plants, the proposed reversal of EPA’s policy on affirmative defenses for startups, shutdowns, and malfunctions; and the Supreme Court’s recent acceptance of certiorari to review the legality of the Mercury Air Toxics Standard (MATS). Of these, it is perhaps the ozone NAAQS that poses the most serious and important consequences for businesses as well as state regulators, and even the EPA itself. A further lowering of the ozone NAAQS (it was last lowered in 2008) will significantly impact nearly every industrial sector, necessitating, in our view, widespread participation in EPA’s notice and comment process. Comments will be due 90 days after publication of the proposal in the Federal Register; although, given the significance and breadth of the rule’s potential impacts, it is possible the comment deadline will be extended. A final rule is expected by October, 2015.


DGS Ranks Among Best Law Firms

Davis Graham & Stubbs LLP was named among the 2014-2015 “Best Law Firms” by publisher Woodward/White, Inc. in their fifth edition, which published today. U.S. News and Best Lawyers® have joined forces to position more than 11,000 firms in 87 practice areas based in 178 metropolitan areas and eight states. Firms were ranked across three tiers both locally and nationally based on quantitative and qualitative data gathered from peer and client feedback.

August 2014

EPA Actions on GHG Permitting Following the UARG Decision

As discussed in our client alert of June 24, 2014, the U.S. Supreme Court in Utility Air Regulatory Group v. EPA (UARG) invalidated EPA’s greenhouse-gas (GHG) regulations to the extent those regulations required stationary sources to obtain Prevention of Significant Deterioration (PSD) and/or Title V major source permits based solely on the source’s GHG emissions (termed "non-anyway" sources). On July 24, 2014, EPA issued a memorandum to the regional administrators outlining several next steps following the UARG decision.

July 2014

Connie Rogers Joins Center of the American West Board

DGS partner Connie Rogers today begins her term on the Board of Directors of the Center of the American West at the University of Colorado. Founded in 1986, the Center serves as a forum committed to the civil, respectful, and problem-solving exploration of important and often contentious public concerns. The center has published numerous books, articles, and films addressing western issues such as energy, water, and conservation.

June 2014

COGCC Shuts Down Wastewater Injection Site in Response to Small Earthquakes - How This Could Impact Colorado Operators

This past Tuesday – June 24, 2014 – the Colorado Oil and Gas Conservation Commission (COGCC) issued a press release, explaining that it had ordered High Sierra Water Services to temporarily cease operating a 10,000 barrel-per-day injection well in Weld County. The COGCC described the order as “a precautionary step” that would enable the agency to analyze whether well operations are tied to recent low-level seismic activity nearby.

The Supreme Court "Tailors" EPA's GHG Permitting Program

Yesterday, Justice Scalia, writing for a majority of the United States Supreme Court, invalidated EPA's greenhouse-gas (GHG) regulations to the extent they require stationary sources to obtain a Prevention of Significant Deterioration (PSD) and/or Title V major source permit based solely on the source's GHG emissions. The Court, however, also validated EPA's extension of "best available control technology" (BACT) requirements to GHG emissions at sources already subject to PSD requirements based on criteria pollutant emissions (so-called "PSD-anyway" sources).

May 2014

Hydraulic Fracturing: Recent Trends & Updates

Please join us for this seminar discussing the recent trends and legal updates surrounding hydraulic fracturing. Our guest speaker, Mike Paque, Executive Director of the Ground Water Protection Council, will address the recent report from the Secretary of Energy Advisory Board, FracFocus 2.0 Task Force.

The Devil's in the Details: EPA's Advance Notice of Proposed Rulemaking on Hydraulic Fracturing Disclosure

On May 9, 2014, the U.S. EPA issued a pre-publication copy of an Advance Notice of Proposed Rulemaking (ANPR) requesting public comment on regulatory and voluntary mechanisms for obtaining information on chemical substances and mixtures used in hydraulic fracturing (HF) operations.

Enforcement Issues Relating to Air & Water Resources

Please join us for the second of our enforcement seminars on current issues affecting air and water resources. In this session, our speakers will cover air enforcement trends and developments in Colorado and EPA Region 8 as well as wetland issues including enforcement under section 404 of the Clean Water Act.

March 2014

Energy Industry Faces Increased Exposure to Claims by Patent Trolls

A patent-assertion entity (PAE) or non-practicing entity (NPE) is an entity that enforces patent rights against others, but does not itself use the patents for any productive purpose. A perennial adversary of high-tech companies and startups, recent studies looking at the rise in patent litigation reveal that these "patent trolls" are turning their sights increasingly on less traditional technology innovators – including those in the energy industry.

February 2013

COGCC Issues New Drilling Setback Rules

On Monday, the Colorado Oil and Gas Conservation Commission (COGCC) gave final approval to new rules which expand the setbacks for oil and gas wells and production facilities and impose new notice, meeting, and mitigation requirements to better protect nearby homes and neighborhoods. The COGCC touts the new rules as "the strongest rules in the country for limiting the impact of drilling near residences and other occupied buildings." These rules will go into effect on August 1, 2013.


Strange Bedfellows - Bicycles and Hydraulic Fracturing

What do bikes and hydraulic fracturing have in common? Prior to this week, the answer was probably very little. On February 4, 2013, however, the Colorado Supreme Court unanimously issued an opinion striking down the City of Black Hawk’s ban prohibiting bicycle traffic on certain local streets. 

October 2012

What the Election Means for the Energy Industry

DGS is hosting The Aaron Harber Show on Thursday, November 15 with the Democracy & Media Education Foundation. The event, "What the Election Means for the Energy Industry," is a nonpartisan, multi-energy industry event to discuss what the new Congress and Presidential Administration will mean for the Energy Industry.

November 2012

Energy Connections Colorado's Geothermal Industry

Geothermal energy, energy generated beneath the Earth's surface, has the potential to meet a large portion of the nation's energy and power needs. Safe, clean and reliable, it can help the country diversify its renewable energy portfolio and enhance energy security.

October 2012

State Regulation of Hydraulic Fracturing and Other Environmental Issues Associated With Unconventional Gas Development

U.S. – Russia Bilateral Presidential Commission Energy Working Group Round Table - Energy Law in XXI: Views from the U.S. and Russia

DGS Attorney Lamont Larsen to Speak at RMMLF Special Institute

DGS associate Lamont Larsen will be speaking at the Rocky Mountain Mineral Law Foundation (RMMLF) Special Institute on Horizontal Oil & Gas Development. The Institute, being held November 8-9 in Westminster, Colorado, will explore the legal and technical challenges facing the oil and gas industry as horizontal development in shale and other similar plays expands and challenges the technological and legal frontiers. 

September 2012

Hydraulic Fracturing Litigation: Recent Developments and Current Issues in Cases Involving Alleged Water Supply Impacts

RMMLF Special Institute on The Water-Energy Nexus: Acquisition, Use and disposal of Water for Energy and Mineral Development

Many experts agree that new supplies of natural gas and oil from shale and other unconventional formations have the potential to decrease our energy costs, increase our employment, enhance our national security, and reduce our greenhouse gas emissions.


DGS Partners Zach Miller and David Neslin to Participate in RMMLF Special Institute

Davis Graham & Stubbs LLP partners David Neslin and Zach Miller will be participating in the Rocky Mountain Mineral Law Foundation (RMMLF) Special Institute on The Water-Energy Nexus: Acquisition, Use and Disposal of Water for Energy and Mineral Development.

July 2012

DGS Partner John Jacus to Speak at Rocky Mountain Energy Epicenter

Davis Graham & Stubbs LLP partner John Jacus will be speaking at the 24th Annual Rocky Mountain Energy Epicenter August 13-16 at the Colorado Convention Center in Denver.

June 2012

Ukraine sees Colorado as model for sound gas development

Denver Business Journal

I recently spoke at a shale gas conference in Kiev, Ukraine, about Colorado's experience producing the energy that we need while protecting the environment that we treasure. 


Federal Oversight of Hydraulic Fracturing

CLE International - Hydraulic Fracturing: The Debate Continues

September 2011

Air Quality Constraints on Shale Development Activites

Institute for Energy Law – Center for American and International Law - Second Conference on the Law of Shale Plays

This paper examines the typical sources of air pollutants from various items of equipment and activities common to shale gas and oil production, the current and likely future air quality regulations affecting the operation of these sources and activities, and recent regulatory and administrative developments of particular concern to those involved in shale gas and oil development.  

Presentation Materials  |  Paper

August 2011

DGS Attorney John R. Jacus Speaks at 2nd Conference on the Law of Shale Plays

Davis Graham & Stubbs LLP announces that John R. Jacus will be speaking at the 2nd Conference on the Law of Shale Plays, which is presented by The Institute for Energy Law, on September 7-8th at the Worthington Renaissance Hotel in Fort Worth, Texas.  Mr. Jacus’ discussion will focus on “Air Quality Constraints on Shale Development Activities.” 


May 2011

When International Issues are Relevant to the Domestic Deal

Rocky Mountain Mineral Law Foundation Journal 48.2

Co-authored: Scot Anderson and Craig Spurn

December 2010

Revised Oil and Gas Lease Form for Colorado State Lands: A Brief Summary of the Proposed Changes

The Rocky Mountain Landman

Co-authors: Lamont Larsen and Lara Griffith

On September 24, 2010, the Colorado State Board of Land Commissioners (the “Board”) released its proposed revision to the oil and gas lease form for Colorado state lands. The Board subsequently accepted written comments regarding the proposed changes and is expected to consider the adoption of the new form at its meeting on December 3, 2010. The proposed changes to the lease form are substantial, and if adopted, may have a significant impact on future operations on Colorado state lands. Following is a brief summary of some of the proposed


September 2010

First 'Best Law Firms' Analysis Slots DGS as a National Leader

The inaugural, 2010 edition of the U.S. News - Best Lawyers® “Best Law Firms” Guide ranks Davis Graham & Stubbs LLP as a national leader in mining law and mutual funds law – and honors the LoDo-based firm with first-tier regional rankings in energy, natural resources, commercial litigation and several corporate law areas, including tax, securities, private equity and M&A. U.S. News & World Report published the results yesterday. The survey included responses from 9,514 corporate executives, in-house lawyers, marketing officers or private practice attorneys.


August 2010

Davis Graham & Stubbs Attorneys Top “Best Lawyers” List in Colorado

The newly announced, 2011 edition of the Best Lawyers in America ranks Davis Graham & Stubbs LLP first in Colorado-based law practices for corporate governance and compliance law, environmental law, mergers and acquisitions law, natural resources law, oil and gas law and securities law. This year Best Lawyers recognizes 36 DGS attorneys, including 13 who have been named to the list for at least 10 years. Nearly half (46 percent) of DGS partners are recognized in the definitive guide to legal excellence, in addition to several attorneys of counsel to the firm. Best Lawyers is a peer-review survey of more than 39,000 in-house counsels and private practice attorneys.


January 2009

Latin American Energy Development in the Obama Administration

Exploration & Production

Jeffrey Davidow, the former US ambassador to Mexico, characterises the relationship between the US and Mexico as analogous to that of a bear and a porcupine – stumbling and prickly.1  The metaphor holds for the relationship between the US and much of Latin America. 


May 2008

Thinking About Risk in the Offshore Energy Industry

2008 Offshore Technology Conference

September 2006

Best Lawyers in America Recognizes 26 Davis Graham & Stubbs Attorneys

Twenty-six Davis Graham & Stubbs attorneys practicing in 28 fields will be recognized in the 2007 edition of The Best Lawyers in America. The number of DGS lawyers recognized in the definitive guide to legal excellence increased by five this year, and represents more than 40% of DGS partners overall. DGS ranks first in the number of Colorado-based attorneys listed by the 2007 edition of Best Lawyers in the Commercial Litigation, Natural Resources, Environmental Law, Securities Law and Corporate Governance and Compliance Law practice areas.


Davis Graham & Stubbs Attorneys on the Lawdragon 500 List

Davis Graham & Stubbs attorney Robert W. Lawrence has been chosen as one of only five Colorado lawyers listed in the Lawdragon 500 New Stars New Worlds, the newest list of 500 U.S. lawyers ranked by clients and peers. Lawrence is featured on the list as one of only two environmental attorneys ranked in Colorado. He joins fellow partner Judith M. Matlock, who was named one of the top-ranked energy attorneys in the U.S. in the inaugural issue, The Lawdragon 500: Leading Lawyers in America in October 2005. Lawdragon conducts independent research and online balloting, and interviews thousands of private and in-house lawyers to assemble the guide that reflects excellence in 80 practice areas.


April 2006

13 Davis Graham & Stubbs Attorneys Named Super Lawyers

Thirteen lawyers at Davis Graham & Stubbs law firm have been named Super Lawyers by their peers in Colorado. Law & Politics magazine polled active Colorado lawyers for nominations to identify the best attorneys in more than 55 practice areas based on peer recognition and professional achievement. Super Lawyers involves an attorney-led research process for a diverse listing of the top lawyers from private practice, in-house counsel and the public sector in different geographic locations. Only 5 percent of the lawyers in each region are listed in Colorado Super Lawyers, co-published by Law & Politics and 5280 magazine.


January 2001

Bush Energy Strategy - Preview

The Bush Administration will release its energy strategy on May 16, 2001. The strategy comes at a time of high gasoline prices, power shortages, and rising energy costs. Many of these problems are caused by a fundamental imbalance between demand for energy and its supply. The strategy offers several approaches to correcting this imbalance. The implementation of these strategies will directly affect the business of natural resource companies, but will also have significant consequences for other business.

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