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South Texas Geological Society Charitable Trust

  • San Antonio, TX
  • Tax-exempt since Aug. 1976
  • EIN: 74-1863162

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$37k (2024)

Expenses
$16.8k (2024)

Total Assets
$363k (2024)

Total Liabilities
$0 (2024)

Source: Form 990 tax filings from 2011 to 2024

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending June
2024

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$37,004
Expenses
$16,800
Net Income
$20,204
Net Assets
$362,803
Notable Sources of Revenue Percent of Total Revenue
Contributions $22,167
59.9%
Program Services $0
Investment Income $18,334
49.5%
Net Fundraising $0
Sales of Assets -$3,497
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $362,803
Total Liabilities $0
Net Assets $362,803
Compensation
Key Employees and Officers Compensation Other
Bradley Arnett (Board Member) $0 $0
Kenneth R Helm (Board Member, Finance Chair) $0 $0
John Cooper (Board Member) $0 $0
Rykley Crowe (Board Member) $0 $0
Mark Norville (Board Member) $0 $0
Jack Sackrider (Board Member) $0 $0
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Document Links

990-EZ
Filed on May 9, 2025

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2023

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$15,783
Expenses
$10,943
Net Income
$4,840
Net Assets
$342,599
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $13,074
82.8%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $2,709
17.2%
Assets/Debt
Total Assets $342,599
Total Liabilities $0
Net Assets $342,599
Compensation
Key Employees and Officers Compensation Other
Bradley Arnett (Board Member) $0 $0
David Clay (Board Member) $0 $0
Travis Garcia (Board Member) $0 $0
Mark Norville (Board Member) $0 $0
Mark E Thompson (Board Member) $0 $0
Kenneth Helm (Finance Committee Chair) $0 $0
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990-EZ
Filed on March 8, 2024

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2022

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$12,247
Expenses
$17,304
Net Income
-$5,057
Net Assets
$337,759
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $12,247
100%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $337,759
Total Liabilities $0
Net Assets $337,759
Compensation
Key Employees and Officers Compensation Other
Bradley Arnett (Board Member) $0 $0
Kenneth R Helm (Board Member) $0 $0
John Casiano (Board Member) $0 $0
Mark E Thompson (Board Member) $0 $0
David Clay (Board Member) $0 $0
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990-EZ
Filed on Feb. 2, 2023

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$15,159
Expenses
$13,914
Net Income
$1,245
Net Assets
$342,816
Notable Sources of Revenue Percent of Total Revenue
Contributions $2,100
13.9%
Program Services $0
Investment Income $13,059
86.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $342,816
Total Liabilities $0
Net Assets $342,816
Compensation
Key Employees and Officers Compensation Other
Debbie Dorsett (Board Member) $0 $0
Kenneth R Helm (Board Member) $0 $0
Ben Boyer (Board Member) $0 $0
Mark E Thompson (Board Member) $0 $0
David Clay (Board Member) $0 $0
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990-EZ
Filed on May 5, 2022

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$11,375
Expenses
$7,560
Net Income
$3,815
Net Assets
$341,571
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $11,252
98.9%
Net Fundraising $0
Sales of Assets $123
1.1%
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $341,571
Total Liabilities $0
Net Assets $341,571
Compensation
Key Employees and Officers Compensation Other
Debbie Dorsett (Board Member) $0 $0
Kenneth R Helm (Board Member) $0 $0
Ben Boyer (Board Member) $0 $0
Mark E Thompson (Board Member) $0 $0
David Clay (Board Member) $0 $0
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Document Links

990-EZ
Filed on March 17, 2021

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending June
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$11,181
Expenses
$14,507
Net Income
-$3,326
Net Assets
$337,756
Notable Sources of Revenue Percent of Total Revenue
Contributions $4,200
37.6%
Program Services $0
Investment Income $11,172
99.9%
Net Fundraising $0
Sales of Assets -$4,191
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $337,756
Total Liabilities $0
Net Assets $337,756
Compensation
Key Employees and Officers Compensation Other
Debbie Dorsett (Board Member) $0 $0
Kenneth R Helm (Board Member) $0 $0
Ben Boyer (Board Member) $0 $0
Mark E Thompson (Board Member) $0 $0
Tom Fett (Board Member) $0 $0
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Document Links

990-EZ
Filed on May 14, 2020

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$14,857
Expenses
$13,344
Net Income
$1,513
Net Assets
$341,082
Notable Sources of Revenue Percent of Total Revenue
Contributions $3,920
26.4%
Program Services $0
Investment Income $10,737
72.3%
Net Fundraising $0
Sales of Assets $200
1.3%
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $341,082
Total Liabilities $0
Net Assets $341,082
Compensation
Key Employees and Officers Compensation Other
Debbie Dorsett (Board Member) $0 $0
Kenneth R Helm (Board Member) $0 $0
Ben Boyer (Board Member) $0 $0
Mark E Thompson (Board Member) $0 $0
Tom Fett (Board Member) $0 $0
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Document Links

990-EZ
Filed on May 13, 2019

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$26,252
Expenses
$10,800
Net Income
$15,452
Net Assets
$339,569
Notable Sources of Revenue Percent of Total Revenue
Contributions $12,750
48.6%
Program Services $0
Investment Income $13,502
51.4%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $339,569
Total Liabilities $0
Net Assets $339,569
Compensation
Key Employees and Officers Compensation Other
Mark Thompson (Board Member) $0 $0
Ben Boyer (Board Member) $0 $0
Allan Clark (Board Member) $0 $0
Ken Helm (Board Member) $0 $0
Bud Holzman (Board Member) $0 $0
Debbie Dorsett (Board Member) $0 $0
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Document Links

990-EZ
Filed on May 15, 2018

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$17,108
Expenses
$4,702
Net Income
$12,406
Net Assets
$324,117
Notable Sources of Revenue Percent of Total Revenue
Contributions $5,100
29.8%
Program Services $0
Investment Income $12,008
70.2%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $324,117
Total Liabilities $0
Net Assets $324,117
Compensation
Key Employees and Officers Compensation Other
Debbie Dorsett (Board Member) $0 $0
Kenneth R Helm (Board Member) $0 $0
Ben Boyer (Board Member) $0 $0
Mark E Thompson (Board Member) $0 $0
Ted Flanigan (Board Member) $0 $0
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Document Links

990-EZ
Filed on Feb. 14, 2017

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$19,325
Expenses
$11,585
Net Income
$7,740
Net Assets
$311,711
Notable Sources of Revenue Percent of Total Revenue
Contributions $7,520
38.9%
Program Services $0
Investment Income $11,586
60.0%
Net Fundraising $0
Sales of Assets $219
1.1%
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $311,711
Total Liabilities $0
Net Assets $311,711
Compensation
Key Employees and Officers Compensation Other
Debbie Dorsett (Board Member) $0 $0
Kenneth R Helm (Board Member) $0 $0
Ben Boyer (Board Member) $0 $0
Mark E Thompson (Board Member) $0 $0
Harry Holzman Jr (Board Member) $0 $0
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Document Links

990-EZ
Filed on Jan. 15, 2016

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$17,759
Expenses
$5,950
Net Income
$11,809
Net Assets
$303,971
Notable Sources of Revenue Percent of Total Revenue
Contributions $3,105
17.5%
Program Services $0
Investment Income $14,569
82.0%
Net Fundraising $0
Sales of Assets $85
0.5%
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $303,971
Total Liabilities $0
Net Assets $303,971
Compensation
Key Employees and Officers Compensation Other
Debbie Dorsett (Board Member) $0 $0
Kenneth R Helm (Board Member) $0 $0
Ben Boyer (Board Member) $0 $0
Mark E Thompson (Board Member) $0 $0
Harry Holzman Jr (Board Member) $0 $0
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Document Links

990-EZ
Filed on Feb. 2, 2015

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$14,884
Expenses
$4,410
Net Income
$10,474
Net Assets
$292,162
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,945
13.1%
Program Services $0
Investment Income $13,056
87.7%
Net Fundraising $0
Sales of Assets -$117
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $292,162
Total Liabilities $0
Net Assets $292,162

Document Links

990-EZ
Filed on March 11, 2014

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending June
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$29,640
Expenses
$5,400
Net Income
$24,240
Net Assets
$281,688
Notable Sources of Revenue Percent of Total Revenue
Contributions $19,129
64.5%
Program Services $0
Investment Income $11,342
38.3%
Net Fundraising $0
Sales of Assets -$831
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $281,688
Total Liabilities $0
Net Assets $281,688

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2011

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$23,195
Expenses
$10,779
Net Income
$12,416
Net Assets
$254,496
Notable Sources of Revenue Percent of Total Revenue
Contributions $12,390
53.4%
Program Services $0
Investment Income $10,798
46.6%
Net Fundraising $0
Sales of Assets $7
0.0%
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $254,496
Total Liabilities $0
Net Assets $254,496

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2010

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2008

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending June
2007

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

About This Data

What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

API

The data powering this website is available programmatically, via an API. Read the API documentation »

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About Nonprofit Explorer

Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

Updated