NYSE : NGS
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| Filing Date | Reporting Person | Amount Beneficially Owned | % of Class |
|---|---|---|---|
| 2026-05-04 | AWM Investment Company, Inc. | 214.78K | 1.70% |
| 2026-04-28 | Franklin Mutual Advisers, LLC | - | 0.00% |
| 2026-03-27 | The Vanguard Group | - | 0.00% |
| 2026-01-30 | The Vanguard Group | 640.54K | 5.09% |
| 2026-01-26 | Hoak & Co. | 575K | 4.57% |
| 2026-01-26 | J. Hale Hoak | 575K | 4.57% |
| 2026-01-26 | Hoak Public Equities, LP | 575K | 4.57% |
| 2026-01-26 | Hoak Fund Management, L.P. | 575K | 4.57% |
| 2026-01-26 | James M. Hoak | 575K | 4.57% |
| 2026-01-07 | Hoak Fund Management, L.P. | 838.13K | 6.67% |
| 2026-01-07 | Hoak Public Equities, LP | 838.13K | 6.67% |
| 2026-01-07 | HOAK JAMES M | 838.13K | 6.67% |
| 2026-01-07 | Hoak J. Hale | 838.13K | 6.67% |
| 2026-01-07 | Hoak & Co. | 838.13K | 6.67% |
| 2025-01-23 | Thomas E. Lynch | 530.88K | 4.30% |
| 2025-01-23 | Mill Road Capital III, L.P. | 530.88K | 4.30% |
| 2025-01-23 | Mill Road Capital III GP LLC | 530.88K | 4.30% |
| 2025-01-16 | Thomas E. Lynch | 754.56K | 6.00% |
| 2025-01-16 | Mill Road Capital III GP LLC | 754.56K | 6.00% |
| 2025-01-16 | Mill Road Capital III, L.P. | 754.56K | 6.00% |
| 2024-11-25 | Mill Road Capital III, L.P. | 829.81K | 6.70% |
| 2024-11-25 | Mill Road Capital III, L.P. | 829.81K | 6.70% |
| 2024-11-25 | Stephen C. Taylor | 605.0 | 4.86% |
| 2024-11-25 | Thomas E. Lynch | 829.81K | 6.70% |
| 2024-11-25 | Mill Road Capital III GP LLC | 829.81K | 6.70% |
| 2024-11-25 | Stephen C. Taylor | 605.0 | 4.86% |
| 2024-11-25 | Thomas E. Lynch | 829.81K | 6.70% |
| 2024-11-25 | Mill Road Capital III GP LLC | 829.81K | 6.70% |
| 2024-11-08 | (1) BlackRock, Inc. | 847.07K | 6.80% |
| 2024-10-22 | (1) BlackRock, Inc. | 847.07K | 6.80% |
| 2024-02-08 | Scott L. Barbee | 854.7K | 6.90% |
| 2024-02-08 | 54-1712996 | 854.7K | 6.90% |
| 2024-02-08 | Scott L. Barbee | 854.7K | 6.90% |
| 2024-02-08 | 54-1712996 | 854.7K | 6.90% |
| 2022-12-09 | Hoak Fund Management, L.P. | 1.15M | 9.26% |
| 2022-12-09 | Hoak Fund Management, L.P. | 1.15M | 9.26% |
| 2022-12-09 | Hoak Public Equities, L.P. | 1.15M | 9.26% |
| 2022-12-09 | J. Hale Hoak | 1.15M | 9.26% |
| 2022-12-09 | Hoak & Co. | 1.15M | 9.26% |
| 2022-12-09 | Hoak Public Equities, L.P. | 1.15M | 9.26% |
| 2022-12-09 | James M. Hoak | 1.15M | 9.26% |
| 2022-12-09 | James M. Hoak | 1.15M | 9.26% |
| 2022-12-09 | J. Hale Hoak | 1.15M | 9.26% |
| 2022-12-09 | Hoak & Co. | 1.15M | 9.26% |
| 2022-11-28 | Hoak & Co. | 1M | 8.05% |
| 2022-11-28 | James M. Hoak | 1M | 8.05% |
| 2022-11-28 | J. Hale Hoak | 1M | 8.05% |
| 2022-11-28 | Hoak Public Equities, L.P. | 1M | 8.05% |
| 2022-11-28 | James M. Hoak | 1M | 8.05% |
| 2022-11-28 | Hoak Public Equities, L.P. | 1M | 8.05% |
| 2022-11-28 | Hoak Fund Management, L.P. | 1M | 8.05% |
| 2022-11-28 | J. Hale Hoak | 1M | 8.05% |
| 2022-11-28 | Hoak & Co. | 1M | 8.05% |
| 2022-11-28 | Hoak Fund Management, L.P. | 1M | 8.05% |
| 2022-03-10 | FMR LLC | 1.32M | 10.09% |
| 2022-03-10 | FMR LLC | 1.32M | 10.09% |
| 2022-03-10 | Abigail P. Johnson | 1.32M | 10.09% |
| 2022-03-10 | Abigail P. Johnson | 1.32M | 10.09% |
| 2022-02-08 | 30-0447847 | 943.26K | 7.20% |
| 2022-02-08 | 30-0447847 | 943.26K | 7.20% |
| 2021-04-15 | Stephen C. Taylor | 681.12K | 5.00% |
| 2021-02-18 | HITE Hedge Asset Management LLC | 123.22K | 0.90% |
| 2021-02-18 | HITE MLP LP | 7556.0 | 0.10% |
| 2021-02-18 | HITE Energy LP | 28004.0 | 0.20% |
| 2021-02-18 | HITE Hedge LP | 20145.0 | 0.20% |
| 2021-02-18 | HITE Hedge Offshore Ltd. | 54911.0 | 0.40% |
| 2021-02-18 | HITE Hedge QP LP | 12601.0 | 0.10% |
| 2021-02-18 | James M. Jampel | 123.22K | 0.90% |
| 2021-02-12 | 30-0447847 | 1.02M | 7.60% |
| 2021-02-11 | 13-3127734 | 665.11K | 4.94% |
| 2021-02-11 | 26-0385758 | 665.11K | 4.94% |
| 2021-02-11 | 13-3127734 | 665.11K | 4.94% |
| 2021-02-11 | 26-0385758 | 665.11K | 4.94% |
| 2021-01-04 | Thomas E. Lynch | 839.44K | 6.20% |
| 2021-01-04 | Mill Road Capital III GP LLC | 839.44K | 6.20% |
| 2021-01-04 | Mill Road Capital III, L.P. | 839.44K | 6.20% |
| 2021-01-04 | Thomas E. Lynch | 839.44K | 6.20% |
| 2021-01-04 | Mill Road Capital III GP LLC | 839.44K | 6.20% |
| 2021-01-04 | Mill Road Capital III, L.P. | 839.44K | 6.20% |
| 2020-02-13 | HITE Hedge Asset Management LLC | 707.09K | 5.20% |
| 2020-02-13 | James M. Jampel | 707.09K | 5.20% |
| 2020-02-13 | HITE Hedge LP | 88548.0 | 0.70% |
| 2020-02-13 | HITE Hedge QP LP | 107.2K | 0.80% |
| 2020-02-13 | James M. Jampel | 707.09K | 5.20% |
| 2020-02-13 | HITE Energy LP | 182.61K | 1.40% |
| 2020-02-13 | HITE Hedge Asset Management LLC | 707.09K | 5.20% |
| 2020-02-13 | HITE Hedge LP | 88548.0 | 0.70% |
| 2020-02-13 | HITE Hedge QP LP | 107.2K | 0.80% |
| 2020-02-13 | HITE Energy LP | 182.61K | 1.40% |
| 2020-02-13 | HITE Hedge Offshore Ltd. | 328.72K | 2.40% |
| 2020-02-13 | HITE Hedge Offshore Ltd. | 328.72K | 2.40% |
| 2020-02-12 | 13-3127734 | 693.61K | 5.15% |
| 2020-02-12 | 13-3127734 | 693.61K | 5.15% |
| 2020-02-12 | 26-0385758 | 693.61K | 5.15% |
| 2020-02-12 | 26-0385758 | 693.61K | 5.15% |
| 2020-02-07 | FMR LLC | 841.94K | 6.25% |
| 2019-03-18 | Oslo Asset Management AS, OAM | 970.0 | 7.00% |
| 2018-11-06 | Oslo Asset Management AS, OAM | 671.0 | 5.00% |
| 2017-06-08 | Neuberger Berman Group LLC | 194.38K | 1.50% |
| 2017-06-08 | Neuberger Berman Investment Advisers LLC | 194.38K | 1.50% |
| 2017-02-07 | Franklin Resources, Inc. | 681.7K | 5.30% |
| 2016-02-09 | Neuberger Berman Group LLC | 1.05M | 8.21% |
| 2016-02-09 | Neuberger Berman Investment Advisers LLC | 1.05M | 8.21% |
| 2016-01-27 | (1) BlackRock, Inc. | 796.87K | 6.30% |
| 2015-01-30 | (1) BlackRock, Inc. | 799.35K | 6.40% |
| 2014-02-10 | (. | 896.42K | 7.23% |
| 2014-01-30 | (1) BlackRock, Inc. | 802.62K | 6.50% |
| 2014-01-28 | 52-2343049 | 550.66K | 4.44% |
| 2014-01-28 | 52-2343049 | 550.66K | 4.44% |
| 2013-02-07 | Keeley Asset Management Corp. | - | 0.00% |
| 2013-02-07 | Keeley Small Cap Value Fund | - | 0.00% |
| 2013-02-07 | Keeley Small Cap Value Fund | - | 0.00% |
| 2013-02-07 | Keeley Asset Management Corp. | - | 0.00% |
| 2013-01-17 | 52-2343049 | 695.57K | 5.64% |
| 2013-01-17 | 52-2343049 | 695.57K | 5.64% |
| 2012-10-30 | Oslo Asset Management ASA, OAM | 2.92M | 9.00% |
| 2012-11-02 | Oslo Asset Management ASA, OAM | 3.32M | 10.00% |
| 2012-10-30 | Oslo Asset Management ASA, OAM | 2.92M | 9.00% |
| 2012-02-07 | Keeley Small Cap Value Fund | 1.14M | 9.40% |
| 2012-02-07 | Keeley Asset Management Corp. | 1.14M | 9.40% |
| 2012-02-07 | Keeley Asset Management Corp. | 1.14M | 9.40% |
| 2011-02-11 | (. | 691.55K | 5.70% |
| 2011-02-11 | (. | 691.55K | 5.70% |
| 2011-02-07 | Keeley Asset Management Corp. | 1.43M | 11.80% |
| 2011-02-07 | (1) BlackRock, Inc. | 738.53K | 6.09% |
| 2011-02-07 | Keeley Small Cap Value Fund | 1.43M | 11.80% |
| 2010-02-17 | Neuberger Berman LLC | 774.16K | 6.40% |
| 2010-02-16 | Edward C. Johnson 3d | 1.28M | 10.60% |
| 2010-02-16 | FMR LLC | 1.28M | 10.60% |
| 2010-02-17 | Neuberger Berman Group LLC | 774.16K | 6.40% |
| 2010-01-29 | BlackRock for purposes of Schedule 13G filings. | 720.22K | 5.95% |
| 2009-11-10 | Edward C. Johnson 3d | 1.48M | 12.24% |
| 2009-11-10 | FMR LLC | 1.48M | 12.24% |
| 2009-02-13 | Keeley Small Cap Value Fund | 1.82M | 15.00% |
| 2009-02-13 | Keeley Asset Management Corp. | 1.82M | 15.00% |
| 2008-02-14 | Keeley Small Cap Value Fund; Tax I.D. No.: 36-3872373 | 1.56M | 12.90% |
| 2008-02-14 | Keeley Asset Management Corp.; Tax I.D. No.: 36-3160361 | 1.56M | 12.90% |
| 2008-02-12 | Westcliff Capital Management, LLC 77-0435868 | 372.68K | 3.10% |
| 2008-02-12 | Richard S. Spencer III | 372.68K | 3.10% |
| 2007-02-13 | Keeley Asset Management Corp.; Tax I.D. No.: 36-3160361 | 755K | 6.30% |
| 2007-02-13 | Keeley Small Cap Value Fund, Inc.; Tax I.D. No.: 36-3872373 | 755K | 6.30% |
| 2006-07-10 | 04-2683227 | 1.34M | 11.20% |
| 2006-02-01 | 51-0504477 | - | 0.00% |
| 2005-10-07 | 51-0504477 | 202.8K | 2.86% |
| 2005-02-08 | 51-0504477 | 651.7K | 10.74% |
| 2005-01-12 | (: | 426.83K | 7.03% |
| 2003-03-03 | Richard L. Yadon | 303.55K | 6.20% |
| 2003-02-27 | Scott W. Sparkman, Sharon R. Pipes, Diamond S DGT and Sharon Renee Pipes TTEE | 528.97K | 10.80% |
| 2003-02-27 | Naudain Sellers, July 11, 2002 GRAT | 685.66K | 14.00% |
| 2003-02-14 | CAV-RDV, Ltd. | 488.13K | 10.60% |
| Date | Stock Price | Shares Outstanding | Market Cap | Cash & Equivalents | Total Debt | Enterprise Value |
|---|---|---|---|---|---|---|
| 2025-12-31 | $33.65 | 12.54M | $421.9M | -$ | $230.46M | $652.37M |
| 2024-12-31 | $26.80 | 12.41M | $332.64M | $2.14M | $170.15M | $500.65M |
| 2023-12-31 | $16.08 | 12.32M | $198.04M | $2.75M | $165.26M | $360.56M |
| 2022-12-31 | $11.46 | 12.3M | $141.02M | $3.37M | $25.35M | $162.99M |
| 2021-12-31 | $10.47 | 13.1M | $137.16M | $22.94M | $285K | $114.5M |
| 2020-12-31 | $9.48 | 13.22M | $125.36M | $28.92M | $900K | $97.34M |
| 2019-12-31 | $12.26 | 13.11M | $160.78M | $11.59M | $1.02M | $150.21M |
| 2018-12-31 | $16.44 | 12.96M | $213.14M | $52.63M | $417K | $160.93M |
| 2017-12-31 | $26.20 | 12.83M | $336.17M | $69.21M | $417K | $267.38M |
| 2016-12-31 | $32.15 | 12.7M | $408.37M | $64.09M | $417K | $344.69M |
| Date | Stock Price | Shares Outstanding | Market Cap | Cash & Equivalents | Total Debt | Enterprise Value |
|---|---|---|---|---|---|---|
| 2026-06-30 | $43.14 | 12.66M | $546.32M | $84000 | $328M | $874.24M |
| 2026-03-31 | $37.74 | 12.58M | $474.92M | $2.31M | $226.47M | $699.08M |
| 2025-12-31 | $33.65 | 12.54M | $421.9M | -$ | $230.46M | $652.37M |
| 2025-09-30 | $27.99 | 12.54M | $351.11M | -$ | $208M | $559.11M |
| 2025-06-30 | $25.81 | 12.48M | $322.19M | $325K | $182.16M | $504.03M |
| 2025-03-31 | $21.97 | 12.46M | $273.79M | $2.15M | $168.16M | $439.81M |
| 2024-12-31 | $26.80 | 12.44M | $333.34M | $2.14M | $170.15M | $501.35M |
| 2024-09-30 | $19.11 | 12.43M | $237.48M | $410K | $163M | $400.07M |
| 2024-06-30 | $19.55 | 12.38M | $242.11M | $3.62M | $163M | $401.49M |
| 2024-03-31 | $20.25 | 12.38M | $250.7M | $5.24M | $172M | $417.46M |
| 2023-12-31 | $16.08 | 12.38M | $199.04M | $2.75M | $165.26M | $361.55M |
| 2023-09-30 | $14.56 | 12.38M | $180.22M | $197K | $128.26M | $308.29M |