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Explorer Foundation Update

The AAPG Foundation is committed to the next generation of geoscientists, from introduction of geology through hands-on programs to grants and scholarships that aid students with their studies.

American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

In a recent EXPLORER, Marlan Downey lamented that he had not fully appreciated the idea that source rocks could serve as reservoir rocks for oil and natural gas. He was not alone.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

Determination of petrophysical properties such as water saturation, effective porosity and permeability, can be carried out using extended elastic impedance approach.

American Association of Petroleum Geologists (AAPG)
Explorer Division Column DEG

I have very much enjoyed representing the Division as its president. It has given me the opportunity to work with all levels of AAPG membership in the United States and internationally. AAPG is truly a global organization.

American Association of Petroleum Geologists (AAPG)
Explorer Director’s Corner

As U.S. production continues to grow, all eyes are focused on OPEC and its recent May 25 meeting to determine whether to keep production cuts in place in an effort to maintain oil prices.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Lucia Torrado, had been here before – the AAPG Student Poster Competition, held yearly at the AAPG Annual Convention and Exhibition. But this year had a “vibe” to it.

American Association of Petroleum Geologists (AAPG)
Explorer Article

For this year’s salary survey, there’s some good news and some bad news.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Pulitzer Prize-winning energy researcher Daniel Yergin analyzes the current market from a historical perspective.

American Association of Petroleum Geologists (AAPG)
Learn! Blog

Drones are currently being used in many applications, including pipeline and tank inspections, as well as methane leaks and seeps. Money is being saved. Resources are being discovered. But, behind the use of most drones and UAVs is the issue of safely and legally operating beyond the visual line of sight (BVLOS). Welcome to an interview with Jim Cieplak, who talks to us today about his work with Harris Corporation and BVLOS solutions.

American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

The present day Cretaceous Codell oil and gas development in the central portion of the Denver Basin of Colorado can be attributed to an earlier effort in bringing the Codell to the attention of the industry.

American Association of Petroleum Geologists (AAPG)
Workshop
Muscat, Oman
Monday, 6 April Wednesday, 8 April 2026, 8:00 a.m.–5:00 p.m.

The AAPG Structural Styles of the Middle East is back! This exciting and highly anticipated Geoscience Technology Workshop will take place from 6 – 8 April 2026, in Muscat, Oman. This workshop aims to explore the diverse structural styles resulting from the different deformation phases on the tectonostratigraphic framework of the Arabian Plate and adjacent regions.  

American Association of Petroleum Geologists (AAPG)
DL Abstract

While there are many habitats that are associated with the deposition of organic-rich marine and lacustrine source rocks, one important pathway is linked to the onset of increased basin subsidence associated with major tectonic events. A key aspect is that this subsidence is spatially variable, with the uplift of basin flanks contemporaneous with the foundering of the basin center, resulting in a steeper basin profile.

Request a visit from Kurt W. Rudolph!

American Association of Petroleum Geologists (AAPG)
DL Abstract

This presentation is a survey of subsurface machine learning concepts that have been formulated for unconventional asset development, described in the literature, and subsequently patented. Operators that utilize similar subsurface machine learning workflows and other data modelling techniques enjoy a competitive advantage at optimizing the development of unconventional plays.

Request a visit from Shane Prochnow!

American Association of Petroleum Geologists (AAPG)
DL Abstract

Local sea-level changes are not simply a function of global ocean volumes but also the interactions between the solid Earth, the Earth’s gravitational field and the loading and unloading of ice sheets. Contrasting behaviors between Antarctica and Scotland highlight how important the geologic structure beneath the former ice sheets is in determining the interactions between ice sheets and relative sea levels.

Request a visit from Alex Simms!

American Association of Petroleum Geologists (AAPG)
VG Abstract

The Betic hinterland, in the westernmost Mediterranean, constitutes a unique example of a stack of metamorphic units. Using a three-dimensional model for the crustal structure of the Betics-Rif area this talk will address the role of crustal flow simultaneously to upper-crustal low-angle faulting in the origin and evolution of the topography.

Request a visit from Juan I. Soto!

American Association of Petroleum Geologists (AAPG)
DL Abstract

Physics is an essential component of geophysics but there is much that physics cannot know or address. 

Request a visit from John Castagna!

American Association of Petroleum Geologists (AAPG)
DL Abstract

Subsurface risk and uncertainty are recognized as very important considerations in petroleum geoscience. And even when volume estimates are relatively accurate, the reservoir characteristics that determine well placement and performance can remain highly uncertain. In analyzing results and work practices, three aspects of uncertainty are reviewed here.

Request a visit from Kurt W. Rudolph!

American Association of Petroleum Geologists (AAPG)
VG Abstract

In comparison with the known boundary conditions that promote salt deformation and flow in sedimentary basins, the processes involved with the mobilization of clay-rich detrital sediments are far less well established. This talk will use seismic examples in different tectonic settings to document the variety of shale geometries that can be formed under brittle and ductile deformations.

Request a visit from Juan I. Soto!

American Association of Petroleum Geologists (AAPG)
DL Abstract

The Energy sector is a changing business environment. Throughout the 20th century fluctuations of oil supply and demand produced changes in the barrel price that pushed the growth or shrinkage of the industry. In this 21st century, new challenges such as diversification of the energy mix, boosting gas demand, require the exploration of critical minerals and development of new technologies as well.

Request a visit from Fernanda Raggio!

American Association of Petroleum Geologists (AAPG)
DL Abstract

The Earth is not a fragile place, but our place on the Earth is very fragile. Geoscience offers a pathway to understand how the Earth has evolved and the role of biological life forms in that evolution.

Request a visit from Lesli Wood!

American Association of Petroleum Geologists (AAPG)
DL Abstract

Fossil hominin footprints offer a unique and immediate snapshot of our ancestors' lives, capturing their ecological, environmental, and behavioral contexts over remarkably short time scales. This presentation delves into the discovery and analysis of over 400 human footprints from Engare Sero, Tanzania, located on the southern shore of Lake Natron.

Request a visit from Cynthia Liutkus-Pierce!

American Association of Petroleum Geologists (AAPG)

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