Phil Conway

Phil Conway joined Rose & Associates, LLP in January 2014 as VP of Client Solutions. He has demonstrated strong technical knowledge in a wide range of exploration disciplines, including seismic interpretation, reservoir modeling, prospect and play assessment and valuation, and data management. He received his B.Sc. with Honors in Geology from the University of Liverpool in 1988. He began his career with Chevron as an explorer and has distinguished himself as one who rapidly grasps customer expectations and regularly exceeds them. He has demonstrated that quality with Cogniseis, Schlumberger, GeoKnowledge (as Director of Americas) and most recently as COO at Platte River Associates. Phil focuses on our software business, Lognormal Solutions LLC.

Dewayne Bagley

Dewayne Bagley is an Associate with Lognormal Solutions, Inc. (LSi), the software company owned by Rose & Associates, LLP. He worked in the regional and corporate exploration teams at SM Energy as a Reservoir Engineer for three years, leading the teams in the economic and risk analysis of unconventional prospects.

For the past twelve years, he has developed software solutions for a variety of industries with a particular focus on Excel programming. For the last two years, he has developed the UCRA v2 with its migration from a formula-based workbook to its advanced VBA functionality.

He has a BS in Nuclear Engineering from Texas A&M University.

Julian Bessa

Julian Bessa (BSc. Bristol University, MSc. Aberdeen University, D.Phil. Oxford University) is a geoscientist with twenty-eight years of experience across the E &P funnel gained in Super majors to mid-size independent to a small Aim-listed E &P micro-cap. Julian brings expertise in exploration, appraisal, and development with an emphasis on frontier operating environments and heavy operational work programmes.

The early part of Julian’s Career was spent with Shell International, where for ten years he worked in appraisal as a petroleum engineer in Venezuela to the Sakhalin-2 project in the Russian Far East. During his time with Shell, he gained an MBA from the Rotterdam School of Management.

After this, he moved to BG Group, where over an eleven-year period, he led venture organisations focused on exploration and appraisal in the eastern Mediterranean to new Ventures in Central Asia (Kazakhstan, Turkmenistan) and exploration operations in Latin America (Uruguay, Honduras). His last role in BG prior to the combination with Shell was VP Exploration and Chief Geologist for BG Brazil based in Rio de Janeiro. He was accountable for delivering all venture aspects associated with a heavy exploration work programme for ten operated blocks (and 4 operated Partnerships) in the Equatorial Margin and appraisal in the Santos basin.
During the combination with Shell, Julian took up the role of Exploration Manager for Bolivia, where he completed a 700-line km 2D survey within time/budget in challenging onshore topography in a remote jungle/mountain location. He later moved to join a small Aim-listed company and focussed on the southern cone in Latin America. He was instrumental in bringing in a portfolio of onshore acreage in The Austral Basin and was accountable for all technical and commercial aspects of the portfolio including reserves determination and operations.

Julian was elected President of the Petroleum Exploration Society of Great Britain (PESGB 2022 and 2023) and pivoted the Society from its narrow focus on hydrocarbon exploration to embrace other subsurface opportunities offered by the energy transition. Supported by a majority of members in a vote, he steered the organisation to a formal change becoming the GESGB (Geoscience Society of Great Britain).

Marc Bond

Marc Bond (B.S. Geology, University of California at Santa Cruz, 1977; MSc, Geophysics, Colorado School of Mines, 1981) is a geoscientist with over 40 years of petroleum industry experience. Marc joined Rose in November 2014. Previously he held a variety of management and interpretation roles in both the international and domestic arenas with BG Group and Tenneco Oil. His most recent position was Chief Geophysicist, accountable for delivery of effective performance and technical quality in the Geophysics function. Prior to that he was the Subsurface Assurance Manager for 6 years, responsible for the company-wide subsurface assurance for all projects, including Exploration, Appraisal and Development ventures and conventional and unconventional resources. Marc created, designed and implemented this new assurance process, ensuring consistency, objectivity, and best practice of geologic resource and chance assessments of subsurface opportunities. Along with Gary Citron, Marc was instrumental in organizing and maintaining the Risk Coordinators workshop and network to share and compare best practices within the industry. He has worked on several international projects, with substantial experience in Bolivia sub-Andes where he was the Exploration Manager and lead subsurface interpreter. He has significant experience in compressional, difficult terrain seismic interpretation. Other experience includes exploration and appraisal in the North Sea, North and West Africa, Italy and the Rocky Mountains.

Gary P. Citron

Gary P. Citron (BS, Geology, State University of New York at Buffalo; MS & PhD in Geology, Cornell University)

During his twenty-year career at Amoco (in the 1980s and 1990s), he served as a geoscientist, exploration supervisor, and asset manager, as well as an internal consultant to executives and team leaders. While at Amoco’s Prospect Quality Team, Dr. Citron actively reviewed prospects prior to and after drilling, and mentored younger geoscientists on prospect measurement. These later assignments at Amoco served him well for his transition to consulting and teaching to the industry.

In February 1999, Dr. Citron joined Rose’s consulting firm, which focused on the field of prospect and play risk analysis. He became the first Partner in Rose & Associates, LLP in 2001 and assumed the role of Managing Partner from 2003 to May 2014, leading Rose & Associates to multiple consecutive years of profitable growth.

Dr. Citron has developed expertise in consensus building in prospect risk assessments and performance tracking of operational activity. In addition to his teaching and consulting obligations associated with conventional and unconventional resource opportunities, he coordinates a yearly gathering of risk team coordinators to share and compare best practices. He also helps companies benchmark their predictive performance against companies in their peer group. In 1999, he was selected by the AAPG to serve in their Visiting Geologist Program. In 2001, he received the best paper award from the AAPG’s Division of Professional Affairs, and again in 2007 he was honored for delivering a ‘Top Ten Oral Presentation’ at the AAPG annual convention in Long Beach.

Dr. Citron regularly donates his time to the AAPG for its education curricula, teaching courses on prospect, play, and shale analysis. He has served in the AAPG House of Delegates and in the SPE as an Associate Editor for the Economics and Management journal (SPEEM). He is a Texas state certified and licensed Geologist who has authored or co-authored more than a dozen publications, and has been an invited and honored speaker for the SIPES, Geological Society of London, AAPG, SPE, and SEG.

Kellam Colquitt

Kellam Colquitt (BS Geology, Texas A&M University) is a successful exploration and development geologist with extensive experience both domestically and internationally. His 45-year career has included officer and senior management positions at large public and private oil and gas exploration and production companies. In those positions, he was responsible for directing and overseeing domestic exploration efforts in the Gulf of Mexico, West Texas, South Louisiana, the mid-continent and New Mexico.

Internationally, he has worked extensively in many of the South American basins, particularly those in Argentina. Other international experience he has includes exploration in the North Sea and West Africa as well as the Po Valley in Italy. Before joining Rose & Associates in 2009, he served as the Chief Operating Officer for Reef Exploration, L.P. in Richardson, TX. Previously he served as the Vice President of Exploration for Vintage Petroleum, Inc. in Tulsa, OK and earlier was Vice President of North American Operations for Ranger Oil Limited in Houston and Calgary. Beginning in 2003 until Vintage’s sale to Occidental Petroleum in 2006, he focused on new, unconventional resource plays in Texas, Kentucky, New York, and Alabama.

Earlier in his career, he was Exploration Manager for Santa Fe Minerals, Inc in Dallas, TX and an exploration and development geologist for Placid Oil Company in Dallas. In 1995, he began introducing and championing the Rose & Associates, LLP methodology in the companies he served and has utilized their techniques for prospect analysis and resource size estimation for many years on prospects in multiple basins throughout the world.

Mark Golborne

Mark Golborne (BSc Geophysical Science, Southampton University) possesses diverse global upstream experience after over 33 years in Exploration and Appraisal.

Mark started his career in the North Sea in 1981 with the British National Oil Corporation, later privatized to Britoil. He subsequently joined ARCO working S. E. Asia and Latin America basins culminating in a VP Subsurface role in Indonesia, one of ARCO’s main profit centers. BP ultimately purchased ARCO and Mark moved to BP exploration leadership roles in the Gulf of Mexico Deepwater and Shelf, and Caribbean before moving to the Middle East as VP Exploration Middle East and Country Manager Jordan.

Mark has a track record of strong technical and multidisciplinary team leadership across acreage capture, exploration, appraisal and front-end delivery of development in oil, gas and unconventionals. He has varied experience in exploration strategy, cost management organizational re-engineering, negotiations, HSE and crisis management. Mark has spent much of his career overseas, successfully working across varied cultures. He is recognized for his ability to manage business and relationship complexity and for mentoring and coaching younger staff. Most recently Mark worked the Permian Basin, onshore USA. Mark was a member of the BP Worldwide Exploration Forum and a BP Group Leader. He is a past Chairman of the Indonesian Petroleum Association Annual Convention, and a member of the SEG and AAPG.

Paul Haryott

Paul Haryott has an extensive global background in oil and gas exploration that stretches over the 40 years since he began his career in 1977 in the UK North Sea. Paul holds a BSc in Geology from Liverpool University and a MSc in Petroleum Exploration Studies from Aberdeen University)

Through his subsequent international assignments, he has gained both extensive regional knowledge and commercial understanding of the world’s major petroleum systems He has participated in numerous drilling campaigns that evaluated these basins. Paul is highly skilled in project and team management, and in executing exploration programs in diverse locations.

Paul led Texaco’s Global Review Team commencing in 1999, gaining an in-depth knowledge of managing a major oil company’s exploration risk and uncertainty assessment program. This industry-leading program was subsequently successfully integrated into Chevron in 2001 following the merger of the two companies.

As a senior executive and member of senior management in major oil companies, Paul has considerable experience in the development of exploration strategies, portfolio management, budgetary management, organizational design, and technology alignment that have been associated with considerable business success. Extensively globally networked, he has a special interest in new opportunity development and assessment, both technically and commercially.

He has authored and co-authored numerous publications that include risk and uncertainty insights, and is a member of the AAPG and a Fellow of the Geological Society of Great Britain.

Roger Holeywell

Roger Holeywell has worked in the petroleum industry since the 1960s and has held positions with Diamond Shamrock (Amarillo & Houston), Texas Oil & Gas (Shreveport & Dallas), and Marathon Oil (Houston). During his career he has worked as Senior Exploration Geologist, Exploration Manager, Mapping & Database Supervisor, Corporate Exploration Coordinator, and GIS Manager, among others. He recently retired from Marathon after 37 years of service, having most recently held the position of Geoscience Data Manager.

Roger has degrees in Geology from Texas A&M University (BS) and Brown University (MS), and later in his career returned to school to earn a Master’s Degree in Finance from the University of Texas at Dallas.

Since the early 1990s, Roger has worked in the field of risk analysis and was instrumental in collaborating with Pete Rose to establish the original partnership between R&A and Marathon for software development and marketing. Roger recently celebrated his 20th year as a freelance software developer for R&A. His software projects include MMRA, Portfolio Essentials, Risk Essentials, Multi-zone Master, PlayRA, and Portfolio Rollup. He has also been involved in R&A’s DHI Consortium since its inception 15 years ago and is the author of the Consortium’s primary software tool, SAAM.

Mark Olson

Mark Olson (BS and Msc, Degrees in Geology from the University of Wyoming) has over 25 years of experience in technical and leadership positions in Development, Exploration and Technology groups.

Mark began his career as a Clastic Stratigraphic specialist in Upstream Technology of Phillips Petroleum/ConocoPhillips and then moved into several technical and leadership positions globally in Development and Exploration before returning to the technology organization as Manager of the Sedimentology & Stratigraphy Group. He moved to Apache Corporation in 2015 as the Geological Manager for Exploration & Production Technology before becoming Suriname Geoscience Lead on the exploration phase that led to numerous discoveries. Mark then became Director of Geology where he was responsible for the organizational structure, training, career development and technical assurance for all geologists in Development and Exploration worldwide.

Throughout his career, Mark has developed a broad range of experience in the integrated evaluation of conventional and unconventional reservoirs from Basin Analysis to Reservoir Characterization in numerous basins and depositional systems worldwide (onshore, offshore, high temperature/high pressure, tight gas, heavy oil). He has led classroom & field-based training in subsurface characterization for > 500 geoscientists/engineers and defined competencies and training curriculum for geoscience career development. His varied technical and training expertise led him to join Rose in 2023.

Henry S. Pettingill

Henry S. Pettingill is a Petroleum Geologist and Exploration Manager who has been in the oil and gas industry since 1983. He joined Rose and Associates in 2018 after 16 years with Noble Energy Inc., where he finished his career as Chief Geoscientist. Prior to that, he served as Director of Business Innovation from 2013-2015, and as Director of Exploration Technology from 2002-2013. His responsibilities included overseeing the Global Exploration Portfolio, Risk Analysis, Geoscience Technology, and Staff Development. Prior to joining Noble, he held various technical and managerial positions within Repsol and Royal Dutch/Shell. His assignments have focused on Deepwater Exploration and Appraisal, International Exploration/New Ventures, Exploration Risk Analysis, and Portfolio Management. He has taught classes in Exploration Risk Analysis at the University of Oklahoma, the Nautilus Geosciences Training Alliance, and the Instituto Superior de la Energía (Madrid), and teaches Deep Water Clastics in the Spanish Pyrenees. In 2017, he was recognized by AAPG as one of the industry’s “100 Explorationists Who Made a Difference”.

Mr. Pettingill holds a BA degree from the University of Rochester and an MSc degree from Virginia Tech (USA). He also completed the Executive Management Program at INSEAD Euroforum (Spain). He is an AAPG Certified Petroleum Geologist, Texas Board of Professional Geoscientists Licensed Geologist, and an active member of AAPG, PESGB, SEG, and SPE. He is a Trustee Associate of the SEG and AAPG Foundations. Petingill is chairman of Rose & Associates’ DHI Consortium.

Matt Smith

Matt Smith works with Lognormal Solutions, LLC (LS), the software company owned by Rose. He has been passionate about computers and software ever since loading up Oregon Trail on an Apple II. Years later, after graduating from Wayne State University with a BS in Computer Science, he worked in a variety of industries gaining experience developing software, administrating databases, managing servers, implementing new systems and even offering technical customer support before starting his freelancing business in 2015.

Which such a breadth of knowledge, he was the perfect fit in 2018 to redevelop the VBA tool MMRA into what has become RoseRA.

When he’s not knee deep in C#, he enjoys fixing up his old Volvos, riding his bicycles at a gentlemanly pace and reading books while trying not to be that guy that is always talking about the book he just read.

Islam Hamed

Islam serves as Rose’s business agent in the United Arab Emirates.

Liu (Sharon) Mingfang

Liu Mingfang has an English and foreign trade education background and for the past 10 years has worked with the Chinese national oil companies and in-country oil and gas companies selling software and seismic data. Liu has a team of geologists that work with her to promote and utilize the Player software to help Chinese companies maximize their exploration success, both conventional and unconventional.

Rocky Roden

Rocky Roden has been successful in managing and administering programs and technical staffs in exploration and development, domestically and worldwide, for the past 30 years He is a proven oil finder with extensive knowledge of modern geoscience technical approaches (past Chairman – The Leading Edge Editorial Board). He has worked with Texaco, Decca Survey, Pogo, and Maxus Energy, and was Chief Geophysicist with Repsol-YPF. Rocky currently consults with Seismic Micro- Technology as Chief Consulting Geoscientist, is a principal in the DHI Risk Analysis Consortium, and consults with several oil companies on technical and prospect evaluation issues. He has a MS degree in Geological and Geophysical Oceanography from Texas A&M University.

Lisa Ward

Lisa Ward has served Rose as Business Operations Manager since August 2010. She enjoys spending time with her family, whether they’re exploring the mountains near their home in northern Utah, collecting vinyl records, playing pickleball, or rooting for BYU sports teams.

Leigh Crenshaw

As Controller, Leigh Crenshaw has been at Rose longer than anyone else, since the days Pete Rose himself ran the company. Leigh enjoys spending time in the country with her family, and tries her best to keep her pets out of mischief while on Teams calls with her coworkers.