Yorktown Energy Partners IX, L.P.

Entity
Company
Business address
410 Park Avenue, 20 Th Floor, 10022 New York, NY
Phone
212.515.2115
State of incorporation
DE
Fiscal year end
December 31
Signature 13F
Bryan H. Lawrence - Managing Member of the General Partner's General Partner
Signature Schedule 13D/G
Yorktown Energy Partners IX, L.P. - Managing Member of the general partner of the general partner
Signature Ownership
Yorktown Energy Partners IX, L.P., By: Yorktown IX Company LP, its general partner, By: Yorktown IX Associates LLC, its general partner, /s/ Bryan H Lawrence, Manager
All SEC filings
View on sec.gov
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Yorktown Energy Partners IX, L.P. has filed 90 SEC EDGAR filings since 10/20/2010

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
13F-HR Open Document Open Filing Aug 14, 2025 Jun 30, 2025 028-17881
SCHEDULE 13D/A Open Document Open Filing Aug 11, 2025
13F-HR Open Document Open Filing May 15, 2025 Mar 31, 2025 028-17881
SCHEDULE 13D/A Open Document Open Filing Mar 31, 2025
144 Open Document Open Filing Mar 20, 2025
144 Open Document Open Filing Mar 20, 2025
13F-HR Open Document Open Filing Feb 14, 2025 Dec 31, 2024 028-17881
4 Open Document Open Filing FORM 4 Dec 12, 2024 Dec 10, 2024 001-38003
13F-HR Open Document Open Filing Nov 13, 2024 Sep 30, 2024 028-17881
13F-HR Open Document Open Filing Aug 13, 2024 Jun 30, 2024 028-17881
13F-HR Open Document Open Filing May 15, 2024 Mar 31, 2024 028-17881
4 Open Document Open Filing FORM 4 Apr 10, 2024 Apr 8, 2024 001-15555
13F-HR Open Document Open Filing Feb 14, 2024 Dec 31, 2023 028-17881
4 Open Document Open Filing Jan 22, 2024 Jan 18, 2024 001-15555
4 Open Document Open Filing FORM 4 Jan 17, 2024 Jan 12, 2024 001-15555
4 Open Document Open Filing FORM 4 Jan 11, 2024 Jan 9, 2024 001-15555
4 Open Document Open Filing Dec 13, 2023 Dec 11, 2023 001-38003
SC 13D/A Open Document Open Filing SC 13D/A Dec 11, 2023
4 Open Document Open Filing Dec 8, 2023 Dec 6, 2023 001-38003
4 Open Document Open Filing Dec 1, 2023 Nov 29, 2023 001-38003
4 Open Document Open Filing Nov 28, 2023 Nov 24, 2023 001-38003
4 Open Document Open Filing Nov 28, 2023 Nov 24, 2023 001-38003
SC 13D/A Open Document Open Filing SC 13D/A Nov 21, 2023
4 Open Document Open Filing Nov 20, 2023 Nov 16, 2023 001-38003
4 Open Document Open Filing Nov 16, 2023 Jul 26, 2023 001-15555
4 Open Document Open Filing Nov 15, 2023 Nov 13, 2023 001-38003
13F-HR Open Document Open Filing Nov 14, 2023 Sep 30, 2023 028-17881
144 Open Document Open Filing Nov 13, 2023
144 Open Document Open Filing Nov 13, 2023
13F-HR Open Document Open Filing Aug 14, 2023 Jun 30, 2023 028-17881
4 Open Document Open Filing Jul 18, 2023 Jul 14, 2023 001-15555
SC 13D Open Document Open Filing SC 13D Jul 3, 2023
13F-HR Open Document Open Filing May 12, 2023 Mar 31, 2023 028-17881
13F-HR Open Document Open Filing Feb 14, 2023 Dec 31, 2022 028-17881
13F-HR Open Document Open Filing Nov 14, 2022 Sep 30, 2022 028-17881
13F-HR Open Document Open Filing Aug 11, 2022 Jun 30, 2022 028-17881
4 Open Document Open Filing FORM 4 Jun 3, 2022 Jun 1, 2022 001-38003
SC 13D/A Open Document Open Filing SC 13D/A Jun 2, 2022
4 Open Document Open Filing FORM 4 May 31, 2022 May 26, 2022 001-38003
SC 13D/A Open Document Open Filing SC 13D/A May 26, 2022
4 Open Document Open Filing FORM 4 May 25, 2022 May 23, 2022 001-38003
4 Open Document Open Filing FORM 4 May 20, 2022 May 18, 2022 001-38003
SC 13D/A Open Document Open Filing SC 13D/A May 19, 2022
4 Open Document Open Filing FORM 4 May 18, 2022 May 16, 2022 001-38003
13F-HR Open Document Open Filing May 16, 2022 Mar 31, 2022 028-17881
SC 13D/A Open Document Open Filing SC 13D/A Mar 8, 2022
4 Open Document Open Filing FORM 4 Mar 7, 2022 Mar 3, 2022 001-38003
13F-HR Open Document Open Filing Feb 14, 2022 Dec 31, 2021 028-17881
13F-HR Open Document Open Filing Nov 15, 2021 Sep 30, 2021 028-17881
4 Open Document Open Filing FORM 4 Nov 12, 2021 Mar 5, 2021 001-38003
4 Open Document Open Filing FORM 4 Nov 9, 2021 Nov 5, 2021 001-38003
SC 13D/A Open Document Open Filing SC 13D/A Nov 8, 2021
4 Open Document Open Filing FORM 4 Oct 15, 2021 Oct 13, 2021 001-15555
13F-HR Open Document Open Filing Aug 16, 2021 Jun 30, 2021 028-17881
4 Open Document Open Filing FORM 4 Jul 30, 2021 Jul 28, 2021 001-15555
13F-HR Open Document Open Filing May 17, 2021 Mar 31, 2021 028-17881
3 Open Document Open Filing FORM 3 Mar 1, 2021 Feb 26, 2021 001-15555
13F-HR Open Document Open Filing Feb 16, 2021 Dec 31, 2020 028-17881
13F-HR Open Document Open Filing Nov 16, 2020 Sep 30, 2020 028-17881
13F-HR Open Document Open Filing Aug 14, 2020 Jun 30, 2020 028-17881
13F-HR Open Document Open Filing May 15, 2020 Mar 31, 2020 028-17881
13F-HR Open Document Open Filing Feb 14, 2020 Dec 31, 2019 028-17881
13F-HR Open Document Open Filing Nov 14, 2019 Sep 30, 2019 028-17881
13F-HR Open Document Open Filing Aug 14, 2019 Jun 30, 2019 028-17881
4 Open Document Open Filing FORM 4 SUBMISSION May 31, 2019 May 29, 2019 001-38003
SC 13D/A Open Document Open Filing SC 13D/A May 31, 2019
13F-HR Open Document Open Filing May 15, 2019 Mar 31, 2019 028-17881
SC 13D/A Open Document Open Filing SC 13D/A Mar 28, 2019
4 Open Document Open Filing FORM 4 SUBMISSION Mar 27, 2019 Mar 25, 2019 001-38003
13F-HR Open Document Open Filing Feb 14, 2019 Dec 31, 2018 028-17881
13F-HR Open Document Open Filing Nov 14, 2018 Sep 30, 2018 028-17881
SC 13D/A Open Document Open Filing SC 13D/A Oct 22, 2018
4 Open Document Open Filing FORM 4 SUBMISSION Aug 30, 2018 Aug 28, 2018 001-38003
4 Open Document Open Filing FORM 4 SUBMISSION Aug 15, 2018 Aug 13, 2018 001-38003
13F-HR Open Document Open Filing Aug 14, 2018 Jun 30, 2018 028-17881
13F-HR Open Document Open Filing May 15, 2018 Mar 31, 2018 028-17881
13F-HR Open Document Open Filing Feb 14, 2018 Dec 31, 2017 028-17881
13F-HR Open Document Open Filing Nov 14, 2017 Sep 30, 2017 028-17881
13F-HR Open Document Open Filing Aug 14, 2017 Jun 30, 2017 028-17881
13F-HR Open Document Open Filing May 15, 2017 Mar 31, 2017 028-17881
SC 13D Open Document Open Filing SC 13D Feb 21, 2017
13F-HR Open Document Open Filing Feb 14, 2017 Dec 31, 2016 028-17881
4 Open Document Open Filing FORM 4 SUBMISSION Feb 10, 2017 Feb 8, 2017 001-38003
3 Open Document Open Filing FORM 3 SUBMISSION Feb 10, 2017 Feb 8, 2017 001-38003
SC 13D Open Document Open Filing SC 13D Nov 7, 2016
4 Open Document Open Filing FORM 4 SUBMISSION Oct 31, 2016 Oct 26, 2016 001-37907
3 Open Document Open Filing FORM 3 SUBMISSION Oct 11, 2016 Oct 11, 2016 001-37907